Importance of Emotion and Alignment Paper Essay Example | Topics and Well Written Essays - 750 words

Importance of Emotion and Alignment Paper - Essay Example However, the culture clash was expected to be between the French way of leadership and his new Japanese employees. The Japanese were conservative and this made Ghosn to accept their culture and operate their way. The financial situations at Nissan forced the management to bring Ghosn so that he could make some difference. Supporters and critics built confidence in Ghosn in circumstances when Nissan had a lot of losses that led to more debts of about $22 billion. The situation led to consumers developing a weakened mind about the brand of Nissan (Millikin, & Fu, 2005). Also, the products’ portfolio consisted fully of older models than what the other competitors had. It was for Ghosn to understand the atmosphere and use it to bring change to the company. Ghosn instilled fear into people by declaring his wish to step down in case Nissan fails to meet the target. Happiness was felt after just eighteen months in charge, and it led to shock to both supporters critics when Nissan started to make profit. The people around Ghosn started to practice transparency since they believed what the leader says, and also think is right. The owners of Michelin felt threatened and denied any one especially Ghosn a chance to be the president of the firm on the ground that it was a family-run company. Therefore, Ghosn understood their denial emotion and decided to resign so that he can make a change somewhere else. Moreover, Renault had confidence in Ghosn and he used that trust to build his empire and became the Executive Vice President. The top and middle management personnel at Renault nicknamed Ghosn â€Å"Le Cost-Killer†. He was given that name because of his hard work in improving cost efficiency by focusing on increasing margin. The management appreciated Ghosn and gave him the role of Nissan COO when Nissan formed an alliance with Renault. The trust built in Ghosn was enough to turn things around faster the same way it was done

The NFL Strikes of 1982 and 1987 Essay Example for Free

The NFL Strikes of 1982 and 1987 Essay Introduction The National Football League (NFL) strikes of 1982 and 1987 were considered groundbreaking events in the NFL but not because it succeeded in its aims. On the contrary, they can justifiably be called abysmal failures. In its failures, the two events gained notoriety and a place in history as: the shortest season in the history of football; the first time replacements were used in a professional football game; and focused on the issue of free agency among football players. This paper will provide an overview of the actual events and discuss the how it went wrong. Background In order to understand the NFL strikes of 1982 and 1987, it would be important to give a background on the NFL Players Association (NFLPA). The union formed with the Green Bay Packers and the Cleveland Browns agreed to join up in 1956 to demand minimum wage and other benefits of NFL players. They were helped in getting the rest of the players of the 28 teams in the NFL sign in by Don Shula (Baltimore Colts), Frank Gifford and Sam Gifford (New York Giants) and Norm Van Brocklin (Los Angeles Rams). (â€Å"National Football League Players Association,† 2007) The NFLPA was not blessed with much influence with the owners of the league, and were pretty much ineffective in pushing their aims and goals through. An attempt to strike prior to the start of the 1956 season did not even get off the ground. Prior to 1982, players operated under a very loose arrangement with team owners; signing bonuses were unheard of and often there were no contracts. The pay scale was far from standard; rookies could be earning more than players of several years standing, unbeknownst to either player. Usually, it was no big deal, until players found out about, usually during shower conversations. (Forbes, 2001) Players also had the most rudimentary of health insurance and training support in terms of finances from the team owners. It was not a given that player uniforms were paid for by the team owners and that they were paid even when injured and unable to play. Because team owners refused to take the calls of the NFLPA for meetings seriously, declining even to show up, the union leaders threatened to file an antitrust lawsuit against the NFL, emboldened by the a recent ruling the Supreme Court in which it denied immunity of the NFL from antitrust laws. The union milked this for all it was worth in the ensuing years, succeeding in winning small victories such as pension and health plans. However, it was not until 1968, twelve years after it was first formed that it became recognized as the official labor union of the NFL. Players went on strike duriong training led by the Cleveland Brown’s Bernie Parrish at the instigation of a major labor union, and the team owners retaliated by locking down the training camps. Afyet a brief interval, a compromise was rached the the NFLPA gained its union contract, such as it was (â€Å"National Football League Players Association,† 2007). The contract was one-sided at best, leaving players with very little leverage during subsequent strikes in 1970, 1974 and 1975 and they were plagued by players crossing the picket line, breaking up the solidarity (Staudohar, 1988). III. The strike of ‘82 The impetus for the 1982 strike was a combination of several factors. After the aborted 1974 strike, lawyer Edward Garvey took over a executive director of the NFLPA. Formerly from the firm representing the NFLPA, Garvey was not new to collective bargaining, and he was determined that the players would get the concessions they have been asking for. It was also at this time that the news spread about an agreement with a television station would almost tripled the owners’ television revenues compared to the previous year. Moreover, the United States Football League (USFL) was slated to start in 1983, effectively breaking the monopoly of the NFL and giving football players more bargaining leverage. All these factors led to the declaration of a strike by the NFLPA on September 19, 1982 and it would last 57 days until November 16 of the same year. The union demanded that players get 55% of the gross revenues of the league. (â€Å"National Football League Players Association,† 2007) Despite the solid front displayed by the players, the NFL refused to give in, opting to shave 7 games off the 16-game season, which was the period in which the strike was ongoing. In the meantime, union leaders organized several â€Å"all-star games† but these did not fare well with the fans nor did it generate sufficient interest for television coverage. In the end, with the networks failing to support the players and the NFL standing fast, the strike ended without the players getting their 55%. When the USFL started in 1983, players were able to bargain for better terms or leave the league. (Staudohar, 1988) The 1987 strike In the interim between the 1982 and 1987 strike, developments in the professional sport led to the demands for better pay as well as the right to free agency. The contract between the NFL and the union was set to expire on August 31, 1987. In 1986, the USFL ceased to operate, emboldening the NFL to allow the strike to happen without fear of the players going to the USFL. The NFLPA had also managed to publish the first NFLPA Base Salary Directory, which provided the basis for salary negotiations for players. (Forbes, 2001) The actual strike was again triggered by a television contract, this time increasing the NFL owners’ revenues to $17,000,000. This time, the union negotiators, Jack Donlan and football player Gene Upshaw have had experience in collective bargaining prior to the strike, and worked well with each other. However, the negotiators had bosses, and the there were a lot of dissenting voices. This is not surprising considering that there was one representative from each of the 28 teams, forming them union’s labor policy making team called the Management Council led by executive director Jack Donlan and another six delegates to form the Council Executive Committee. It was Donlan’s responsibility to promote cohesion in the demands of the union as well as ensure that negotiations keep to limits set by the Council members. Some of the union demands were as follows: minimum salaries severance pay right to free agency elimination of artificial turf (Staudohar, 1988) A football player’s professional life is short, less than four years before becoming too injured to continue playing. Therefore, it is logical that they try to get as much money as they are able to during their productive seasons. However, the 1987 strike did not really emphasize this. What was emphasized by the players who were interviewed and in the subsequent negotiations of union leaders was the right to free agency. Free agency is about a professional player’s right to negotiate with any number of teams for the sale of their services once their contract expires provided they had fulfilled some conditions of tenure. There are five categories of free agency: unrestricted (UFA); restricted (RFA); exclusive-rights (EFA); franchise (FFA); and transitional (TFA). In UFA, a player with at least four years under his belt can change teams without restrictions. RFA dictates that a player of at least three years standing can negotiate for his transfer to another team, but his previous team has the right to match the other team’s offer and retain rights to the player if they do so. If the previous team declines to match the offer, the new team will have to give compensation to the previous team in the form of draft picks. EFA players have less than three years with the league and his team will have to make an offer before the NFL deadline or the player becomes a UFA player. A player designated as FFA is a UFA player for whom a new team, if the previous team declines to match the offer, must remit compensation to the previous team. The TFA player receive an offer from the previous team for minimum higher amount based on last salary i.e. 120% of salary and the previous team has seven days to make the offer. If the offer is not made, the player can sign on with the new team which does not need to compensate the previous team. (â€Å"Free agency definitions explanations,† 2004) The strike was announced on September 22, 1987 and almost immediately, things started to go awry. Because Upshaw as one of the union negotiators was not always present during the bargaining for the new contract, NFL officials complained to the National Labor Relations Board that this was a deliberate ploy to justify a strike due to non-progression in the talks, and claimed bad faith. This strengthened the position of the team owners, and they decided to outface the strikers by bringing in replacement players to play in their stead. The season’s games continued as planned. Replacement players, also referred to as â€Å"scabs† are usually former college football players, or those players who got cut during the draft. This was an unprecedented move by the NFL team owners and was considered a â€Å"dirty† trick. (Farsnworth, 2002) However, the public relations of the NFL got busy in representing the NFL as being in the right, and the fact that by the first week of the strike major players crossed the picket line seemed to reinforce this impression. The break in solidarity, and the failure of union leaders to get the team owners to comply with their terms, led to the ending of the strike on October 15, 1987. The same day, the NFLPA filed an antitrust lawsuit against the NFL team owners, an arena in which they have been more successful before, much more than on the picket line. Eventually, though the 1987 suit was dismissed, another lawsuit filed in 1989 which was more successful and the courts ruled in favor of the players. After going back to negotiations, the team owners agreed to permit free agency with certain conditions based on a player’s tenure on a particular team. (â€Å"National Football League Players Association,† 2007) Discussion The NFL strikes of 1982 and 1987 were interesting because it illustrated how a weak union can do as much damage or even more than no union at all. The NFL owners understood this, which is why they maintained the NFLPA as the official representation of the NFL players even after numerous attempts at strikes and antitrust lawsuits. (Staudohar, 1988) From the beginning, the NFLPA was considered of no account by the team owners, who did not even bother to show up for meetings in the early days. The only recourse that seemed to work was to enlist the help of the judicial system in the form of antitrust lawsuits. The aim of the 1982 strike was primarily to get a piece of the television revenues, and the union leaders believed they were in a position of strength with the USFL soon to provide competition to the NFL. Apparently, they overestimated their strength as the NFL stonewalled them and simply cut the season to nine games until the NFLPA ended the strike. In the end, their desire for higher salaries for the players was realized through the normal course of events and as a result of market forces. There was no real rhyme or reason for the 1982 strike. It was ultimately the players who suffered, who went 57 days without pay or health coverage. Moreover, the failure of the NFLPA to produce results only hurt their prestige and credibility as effective negotiators in the eyes of the team owners as well as the union members. The incredible thing is history repeated itself in 1987. The same kind of circumstances prevailed, perhaps slightly different in details but the same in context, with one important exception. What were the same? The aim was to get a piece of the television revenues. The union leaders thought they were in a position of strength with the recent arbitration decision against baseball team owners who were accused of collusion to control player salaries by halting all signing of free agents filed by the Major League Baseball Players Association. This is even shakier ground than the USFL scenario. At the very least, the USFL was a reasonable proposition because it is based on market forces. The collusion decision against baseball team owners could not reasonably be used against football team owners because free agent signing is so infrequent that collusion would be difficult to prove. The team leaders had nothing to lose in stonewalling the players’ union. As in 1982, the union failed to adequately prepare for the 1987 strike in terms of financial support for the players. Players were once again bereft of their pay and benefits, and the union had no Striker’s funds to dip into for emergencies. It is no wonder that the former solidarity in 1982 melted in the first week of the 1987 strike. The players, at least, had learned the first time around. One important difference is the supposed main aim of the strike: the granting of free agency to players. The tragic thing about this is that as early as 1975, it could have been theirs for the asking with no need to go on a strike at all. At the time of the 1987 strike, the standard in the NFL for player exchange was based on the Rozelle Rule on free agency, named after NFL Commissioner Peter Rozelle. The rule allowed the NFL commissioner to dictate what kind of compensation the new team of a newly-transferred player would have to award the player’s new team. This put acquiring teams at a disadvantage and only four players were traded prior to 1987. The Rozelle Rule was deemed unreasonable restraint under the Sherman Antitrust Act when the Baltimore Colts’ John Mackey filed a complaint   to the Federal courts. This was a golden opportunity for players to become free agents at the end of their contracts because the constraints to trading had been lifted. Incredibly, however, the NFLPA signed away this advantage by signing an agreement with the NFL team owners in 1977 which stipulated compensation payments for signing free agents. This provision was not challenged in the 1982 contract and remained intact. The whole point of the 1987 strike was supposedly to gain the right to free agency which had already been signed away by the union 10 years ago. It is the epitome of irony that even with the strike they failed to regain that which they had foolishly lost themselves. Worse yet, public opinion during the 1987 strike tended to favor the side of the owners, perhaps because the players themselves seemed unhappy about the whole idea themselves. The television stations also signified disapproval by covering the replacement games, which had come to be known as Replacement Sunday, as if they were the regular games. A consequence of the 1987 strike that is still a matter of interest is the use of replacements in the three weeks of the strike. By most accounts from players who were there, no real animosity was directed at the replacement players, or â€Å"scabs† themselves, but it was still considered â€Å"unthinkable† of the team owners to make use of the tactic to undermine the striking players. Some players recall how they were pulled out from construction jobs and stockbroker interviews in â€Å"scavenger hunts† to fill the positions in the 22-player game. For many, it was an opportunity to play professional football that was too good to be missed. Some stayed on even after the strike ended, and in the case of former college football player Tim Burnham, who played left tackle on the Seahawks replacement team, he was invited to train for the summer. For the â€Å"real† players, all rancor ended when the picket line was pulled down (Farsnworth, 2002). Conclusion From a historical perspective, it seems clear that both strikes should not have happened. The pros and cons were not properly evaluated and it appeared that the NFLPA made a habit of going off half-cocked when it came to striking. The tragedy of such miscalculations is that it is the players who suffer, both immediately i.e. loss of income during strikes and in the long term i.e. loss of collective bargaining advantage. Today, football players get impressive salaries and have the right to free agency. They have sign-up bonuses, health benefits and insurance, and all the trappings of fame and glory. Undeniably, some concessions can be directly linked to union efforts on behalf of the players. The strikes of 1982 and 1987, however, were not among the NFLPA’s most shining moments. References Farnsworth, C. (2002, October 4) NFL crossed the line on Replacement Sunday. Seattle Post-Intelligencer. Retrieved July 8, 2007 from   http://seattlepi.nwsource.com/football/89817_replace04.shtml Forbes, G. (2001, June 8) ’82 strike changed salary dealings forever. USA Today.   Retrieved July 8, 2007 from http://www.usatoday.com/sports/comment/forbes/2001-06-08-forbes.htm Free agency definitions and explanations (2004, March 1) Detroit Lions. Retrieved July 7, 2007 from   Ã‚  http://www.detroitlions.com/document_display.cfm?document_id=332893 National Football League Players Association. (2007, June 22). In Wikipedia, The Free Encyclopedia. Retrieved 05:16, July 8, 2007, from http://en.wikipedia.org/w/index.php?title=National_Football_League_Players_Associationoldid=139999742 Staudohar, P. (1988, August) The football strike of 1987: the question of free agency. Monthly Labor Review Online,   vol 111, no. 8. Retrieved July 8, 2007 from http://stats.bls.gov/opub/mlr/1988/08/rpt1full.pdf

Nathaniel Hawthorne was a Liberal Puritan Essay -- essays research pap

Nathaniel Hawthorne's best known short stories including Young Goodman Brown, The Minister's Black Veil, and The Birthmark, should be considered some of the great works of American literature because their exploration of enduring American themes of moral struggle. The short stories demonstrate a masterful command of symbolism and allegory. Nathaniel Hawthorne was born in Salem, Massachusetts in 1804. Descended from a staunch Puritan family, Hawthorne?s father was a presiding judge over the Salem Witch Trials. Hawthorne?s father died when he was young and he spent much time alone during his childhood. He had an introspective nature and was an avid reader. He began to write while he was in college and following graduation, returned to Salem where he entered a twelve-year literary apprenticeship. His first collection of short stories, Twice-Told tales, was published in 1837. Soon afterwards, he joined for a short period an experimental utopian community outside of Boston called Brook Farm in 1841. In 1842, Hawthorne married Sophia Peabody and they moved to Concord, Massachusetts. There Hawthorne wrote many pieces including his next collection of stores in 1846 called ?Mosses from an Old Manse.? From 1846 to 1849, Hawthorne worked in a Salem customhouse. Following his dismissal was a two-year period of intense p roductivity after which he wrote very little fiction, although he did keep notebooks. Hawthorne died in 1864 following several years of inability to complete any of this writings. Much of Hawthorne's work is set in colonial New England and many of his short stories have been read as moral allegories influenced by his Puritan ancestry. He believed that the misfortunes of his immediate family were the result of d... ...esides over a funeral and a wedding, providing no one with any explanation as to his unusual appearance. The only character not afraid of the veil is the minister?s fiancà © but she does ask him to remove it and how his face if only for a single time. He refuses to do so, explaining that the veil must stay on forever in recognition of the time when we will all cast aside our veils. She finally breaks off her engagement with Mr. Hooper since he refuses to remove it. When the minister dies, he is buried with the veil unlifted. Nathaniel Hawthorne?s best known short stories including Young Goodman Brown, The Minister's Black Veil, and The Birthmark, should be considered some of the great works of American literature because their exploration of enduring American themes of moral struggle. The short stories demonstrate a masterful command of symbolism and allegory.

C20th Century Drama English Coursework Essay

This particular play is ‘A view from a Bridge’ written by Arthur Miller. Arthur Miller was born on October 17th, 1915, in New York City. His parents were both Illegal Immigrants in the United States, which links to the background of the play. A view from the Bridge was first produced as a one-act play in verse 1955; Arthur divorces his wife to marry his co-star actress Marilyn Monroe Miller has now become America’s world’s popular playwrights. Most of his plays are about the society and the responsibilities of its relation. But also in all the plays they hide a deep considerate of how people act and behave with the situation of life around them. These obstacles they face which they have to successfully defeat over. ‘A view from a Bridge’ has its roots in the late 1940’s when Miller was interested in the work and lives of New York. Miller purposely wanted the play to be a modern version of a Greek Tragedy, which a main character is faced with trying, daring situations, which cannot be escaped from. In this play a tragic hero commits an offence unexpectedly. He then learns from his misdeed and therefore must die for his actions. Then as it is a Greek Mythology the God’s restores the Universe. In this play the â€Å"Hero† is inked onto a man named Eddie Carbone. He is uniquely and ordinary everyday man. Courteous, hard working and a man that people liked. This play is themed on the background of Italian origins, which relates to the dispute of Italians and Americans. This is introduced with Alifieri’s Speech; â€Å"This is Red Hook not Sicily†¦ now we are civilised, quite American. Now we settle for half†¦. In no longer keep a pistol in my filling cabinet† This reflects with the context of the play and links with the storyline. It also reflects on the reason of the main cause concluding to the violence. The story is also based on the ‘American Dream’ that any person can accomplish what and no matter what upbringing culture or race. He has added this, as in that period of time the American Dream was quite popular which was appropriate for it to relate the aspects of their life. Arthur Miller has produced the main character being the lead role of the play. Eddie Carbone is an Italian Longshoreman working on the New York docks. Eddie is a simple hard workingman who worked on the piers. When his wife’s cousins were sent, Marco and Rodolfo, he agrees to refuge them as illegal immigrants from Sicily. First signs of disturbance are when Catherine starts to show attraction to Rodolfo, at this Eddie disapproves. This is because of Eddies over protectiveness towards Catherine. His possessive behaviour towards Catherine brings him to envy towards Rodolfo. Out of anger and rage at the end Eddie reported them to the Immigration Beaureu. In response of ferocity Marco decides to kill Eddie, but Eddie kills himself with the knife. In one section of evidence, which relates to his own downfall is the possessiveness of Catherine. Catherine is Eddie’s orphaned Niece. In the first scene the audience is immediately given the information that Eddie has a peculiar concern towards his niece. He mentions and details out of her dress sense and suggest it is too short. The evidence showing that he is overprotective is when he indicates that she is walking â€Å"wavy†. â€Å"I don’t like the looks they’re givin’ you in the candy store†¦ the heads are turnin’ like windmills. † In this it is brought immediately to the audience attention of the over protectiveness for his own nice. His concern and obssesiveness of his actions may have a hidden feelings that Eddie has for Catherine. An uncertainty of more than relative love is present with the way he feels for Catherine. Toe Eddie Catherine represents to him as â€Å"just a baby† and therefore she â€Å"does not understand these things† but this is a cover up for his possessive behaviour. In Act 1 page6-10 I suggest his behaviour is both possessive and protective but more possessive. As the conversation of Beatrice, Eddie and Catherine it shows that Eddie treats Catherine like a child, and not the rightful age that she should be treated. The relationship between Eddie and Catherine changes with the arrival of Marco and Rodolfo. As they talk and get to known each other Catherine shows an interest to Rodolfo as she keeps gesturing to Beatrice â€Å"He’s a real blond† He then sings to her â€Å"Paper Doll†, but in a kindest way Eddie tells him to stop. Also that is when the changes of Eddie’s behaviour begin. He embarrasses Catherine by telling her to ‘go ahead’ meaning get out. Eddie again tries to humiliate Catherine so that Rodolfo will lose interest by telling him that â€Å"she wants to be an actress† meaning she’s a drama queen. But Rodolfo flirts back by saying

Physical Sciene Exam Paper March 2012 Grade 12

GRAAD 12 NATIONAL SENIOR CERTIFICATE GRADE 12 PHYSICAL SCIENCES: PHYSICS (P1) FEBRUARY/MARCH 2012 MARKS: 150 TIME: 3 hours This question paper consists of 16 pages and 3 data sheets. Copyright reserved Please turn over Physical Sciences/P1 2 NSC DBE/Feb. –Mar. 2012 INSTRUCTIONS AND INFORMATION 1. 2. 3. Write your centre number and examination number in the appropriate spaces on the ANSWER BOOK. Answer ALL the questions in the ANSWER BOOK. This question paper consists of TWO sections: SECTION A (25) SECTION B (125) 4. 5. 6. 7. 8. 9. You may use a non-programmable calculator.You may use appropriate mathematical instruments. Number the answers correctly according to the numbering system used in this question paper. YOU ARE ADVISED TO USE THE ATTACHED DATA SHEETS. Give brief motivations, discussions, et cetera where required. Round off your final numerical answers to a minimum of TWO decimal places. Copyright reserved Please turn over Physical Sciences/P1 3 NSC DBE/Feb. –Ma r. 2012 SECTION A QUESTION 1: ONE-WORD ITEMS Give ONE word/term for each of the following descriptions. Write only the word/term next to the question number (1. 1–1. 5) in the ANSWER BOOK. 1. 1 1. 2 1. 3 1. 4 1. The type of energy an object has due to its motion The phenomenon which occurs when two light waves meet at a given point The unit of measurement of electrical resistance The basic principle on which electric generators function The type of line spectrum observed when electrons in an atom move from the excited state to the ground state (1) (1) (1) (1) (1) [5] QUESTION 2: MULTIPLE-CHOICE QUESTIONS Four options are provided as possible answers to the following questions. Each question has only ONE correct answer. Write only the letter (A–D) next to the question number (2. 1–2. 10) in the ANSWER BOOK. 2. A car of mass m collides head-on with a truck of mass 2m. If the car exerts a force of magnitude F on the truck during the collision, the magnitude of the force that the truck exerts on the car is †¦ A B C D 1 F 2 F 2F 4F (2) 2. 2 An object moves in a straight line on a ROUGH horizontal surface. If the net work done on the object is zero, then †¦ A B C D the object has zero kinetic energy. the object moves at constant speed. the object moves at constant acceleration. there is no frictional force acting on the object. (2) Copyright reserved Please turn over Physical Sciences/P1 4 NSC DBE/Feb. –Mar. 2012 2. 3A ball is released from rest from a certain height above the floor and bounces off the floor a number of times. Ignore the effects of air resistance. Which ONE of the following velocity-time graphs best represents the motion of the ball? A velocity (m ·s ) -1 B velocity (m ·s ) -1 time (s) time (s) C velocity (m ·s ) -1 D velocity (m ·s ) -1 time (s) time (s) (2) 2. 4 The diagram below shows plane water waves that spread out after passing through a single slit. barrier with single slit plane water waves The wave phenomenon observed after the water waves pass through the slit is †¦ A B C D reflection. diffraction. efraction. photoelectric effect. (2) Copyright reserved Please turn over Physical Sciences/P1 5 NSC DBE/Feb. –Mar. 2012 2. 5 Monochromatic light from a point source passes through a device X. A pattern is observed on a screen, as shown in the diagram below. Key: Colour band Dark band monochromatic light source X From the observation on the screen, it can be concluded that device X is a †¦ A B C D 2. 6 prism. single slit. double slit. concave lens. (2) In the circuit diagram below, the internal resistance of the battery and the resistance of the conducting wires are negligible. The emf of the battery is E. E A V 2R R SWhen switch S is closed, the reading on voltmeter V, in volts, is †¦ A B C D 0 1 E 3 2 E 3 E screen (2) Copyright reserved Please turn over Physical Sciences/P1 6 NSC DBE/Feb. –Mar. 2012 2. 7 Two identical small metal spheres on insula ted stands carry equal charges and are a distance d apart. Each sphere experiences an electrostatic force of magnitude F. The spheres are now placed a distance 1 2 d apart. The magnitude of the electrostatic force each sphere now experiences is †¦ A B C D 2. 8 1 2 F F 2F 4F (2) A fully charged capacitor is connected in a circuit, as shown below. The capacitor discharges when switch S is closed.R S V Which ONE of the following graphs correctly shows the change in the voltmeter reading with time when switch S is closed? potential difference (V) potential difference (V) A B time (s) time (s) potential difference (V) potential difference (V) C D time (s) time (s) Please turn over (2) Copyright reserved Physical Sciences/P1 7 NSC DBE/Feb. –Mar. 2012 2. 9 When light shines on a metal plate in a photocell, electrons are emitted. The graph below shows the relationship between the kinetic energy of the emitted photoelectrons and the frequency of the incoming light. D kinetic ener gy (J) 0 A B C requency (Hz) Which ONE of the points (A, B, C or D) on the graph represents the threshold frequency? A B C D 2. 10 A B C D (2) Overexposure to sunlight causes damage to plants and crops. Which ONE of the following types of electromagnetic radiation is responsible for this damage? A B C D Ultraviolet rays Radio waves Visible light X-rays (2) [20] TOTAL SECTION A: 25 Copyright reserved Please turn over Physical Sciences/P1 8 NSC DBE/Feb. –Mar. 2012 SECTION B INSTRUCTIONS AND INFORMATION 1. 2. 3. 4. Start EACH question on a NEW page. Leave ONE line between two subquestions, for example between QUESTION 3. and QUESTION 3. 2. Show the formulae and substitutions in ALL calculations. Round off your final numerical answers to a minimum of TWO decimal places. QUESTION 3 (Start on a new page. ) A stone is thrown vertically upward at a velocity of 10 m ·s-1 from the top of a tower of height 50 m. After some time the stone passes the edge of the tower and strikes the gr ound below the tower. Ignore the effects of friction. vi = 10 m ·s-1 1,5 m 50 m y1 3. 1 3. 2 Draw a labelled free-body diagram showing the force(s) acting on the stone during its motion. Calculate the: 3. 2. 1 3. 2. Time taken by the stone to reach its maximum height above the ground Maximum height that the stone reaches above the ground (1) (4) (4) (3) 3. 3 3. 4 USING THE GROUND AS REFERENCE (zero position), sketch a positiontime graph for the entire motion of the stone. On its way down, the stone takes 0,1 s to pass a window of length 1,5 m, as shown in the diagram above. Calculate the distance (y1) from the top of the window to the ground. (7) [19] Copyright reserved Please turn over Physical Sciences/P1 9 NSC DBE/Feb. –Mar. 2012 QUESTION 4 (Start on a new page. ) The bounce of a cricket ball is tested before it is used.The standard test is to drop a ball from a certain height onto a hard surface and then measure how high it bounces. During such a test, a cricket ball of mass 0,15 kg is dropped from rest from a certain height and it strikes the floor at a speed of 6,2 m ·s-1. The ball bounces straight upwards at a velocity of 3,62 m ·s-1 to a height of 0,65 m, as shown in the diagram below. The effects of air friction may be ignored. 0,15 kg 0,65 m 4. 1 4. 2 4. 3 Define the term impulse in words. Calculate the magnitude of the impulse of the net force applied to the ball during its collision with the floor.To meet the requirements, a cricket ball must bounce to one third of the height that it is initially dropped from. Use ENERGY PRINCIPLES to determine whether this ball meets the minimum requirements. (2) (3) (5) [10] Copyright reserved Please turn over Physical Sciences/P1 10 NSC DBE/Feb. –Mar. 2012 QUESTION 5 (Start on a new page. ) A wooden block of mass 2 kg is released from rest at point P and slides down a curved slope from a vertical height of 2 m, as shown in the diagram below. It reaches its lowest position, point Q, at a speed of 5 m ·s-1. P 2 kg 2m 9 kg Q 5. 1 5. 2 5. 3 5. 4Define the term gravitational potential energy. Use the work-energy theorem to calculate the work done by the average frictional force on the wooden block when it reaches point Q. Is mechanical energy conserved while the wooden block slides down the slope? Give a reason for the answer. The wooden block collides with a stationary crate of mass 9 kg at point Q. After the collision, the crate moves to the right at 1 m ·s-1. 5. 4. 1 5. 4. 2 Calculate the magnitude of the velocity of the wooden block immediately after the collision. The total kinetic energy of the system before the collision is 25 J.Use a calculation to show that the collision between the wooden block and the crate is inelastic. (2) (6) (2) (4) (5) [19] QUESTION 6 (Start on a new page. ) An ambulance approaches an accident scene at constant velocity. The siren of the ambulance emits sound waves at a frequency of 980 Hz. A detector at the scene measures the frequency o f the emitted sound waves as 1 050 Hz. 6. 1 6. 2 6. 3 Calculate the speed at which the ambulance approaches the accident scene. Use the speed of sound in air as 340 m ·s-1. Explain why the measured frequency is higher than the frequency of the source.The principle of the Doppler effect is applied in the Doppler flow meter. State ONE positive impact of the use of the Doppler flow meter on humans. (4) (2) (2) [8] Copyright reserved Please turn over Physical Sciences/P1 11 NSC DBE/Feb. –Mar. 2012 QUESTION 7 (Start on a new page. ) Learners investigate the change in the broadness of the central bright band formed when monochromatic light of different wavelengths passes through a single slit. They set up the apparatus, as shown in diagram below, and measure the broadness of the central bright band in the pattern observed on the screen.The width of the slit is 5,6 x 10-7 m. screen first dark band monochromatic light ? midpoint of central bright band 0,033 m first dark band 0,45 m 7. 1 7. 2 7. 3 Write down an investigative question. Which TWO variables are kept constant? In one of their experiments, the distance from the midpoint of the central bright band to the first dark band is measured to be 0,033 m. Calculate the wavelength of the light used in this experiment. (2) (2) (5) 7. 4 How will the broadness of the central bright band of red light compare with that of blue light? Write down only GREATER THAN, SMALLER THAN or EQUAL TO.Give a reason for the answer. (2) [11] Copyright reserved Please turn over Physical Sciences/P1 12 NSC DBE/Feb. –Mar. 2012 QUESTION 8 (Start on a new page. ) Two metal spheres, P and Q, on insulated stands, carrying charges of +5 x 10-9 C and +5 x 10-9 C respectively, are placed with their centres 20 mm apart. X is a point at a distance of 10 mm from sphere Q, as shown below. 20 mm +5 x 10-9 C P 10 mm +5 x 10-9 C Q X 8. 1 8. 2 8. 3 8. 4 Define the term electric field. Sketch the net electric field pattern for the two charge s. Calculate the net electric field at point X due to the presence of P and Q.Use your answer to QUESTION 8. 3 to calculate the magnitude of the electrostatic force that an electron will experience when placed at point X. (2) (3) (6) (3) [14] Copyright reserved Please turn over Physical Sciences/P1 13 NSC DBE/Feb. –Mar. 2012 QUESTION 9 (Start on a new page. ) 9. 1 Learners use Ohm's law to determine which ONE of two resistors A and B has the greater resistance. For each resistor, they measure the current through the resistor for different potential differences across its ends. The graph below shows the results obtained in their investigation. A current (A) B potential difference (V) 9. 1. 1The learners are supplied with the following apparatus: 6 V battery Voltmeter Ammeter Rheostat Resistors A and B Conducting wires Draw a circuit diagram to show how the learners must use the above apparatus to obtain each of the graphs shown above. (4) (1) 9. 1. 2 9. 1. 3 Write down ONE var iable that must be kept constant during this investigation. Which ONE of A or B has the higher resistance? Give an explanation for the answer. (3) Copyright reserved Please turn over Physical Sciences/P1 14 NSC DBE/Feb. –Mar. 2012 9. 2 In the circuit diagram below, the battery has an emf of 12 V and an internal resistance of 0,8 ?.The resistance of the ammeter and connecting wires may be ignored. 12 V 0,8 ? 2? 4? A 8? 8? V Calculate the: 9. 2. 1 9. 2. 2 9. 2. 3 Effective resistance of the circuit Reading on the ammeter Reading on the voltmeter (4) (3) (4) [19] Copyright reserved Please turn over Physical Sciences/P1 15 NSC DBE/Feb. –Mar. 2012 QUESTION 10 (Start on a new page. ) 10. 1 The essential components of a simplified DC motor are shown in the diagram below. coil B C N A D S brushes split-ring commutator When the motor is functioning, the coil rotates in a clockwise direction, as shown. 10. 1. Write down the function of each of the following components: (a) (b) 1 0. 1. 2 Split-ring commutator Brushes (1) (1) What is the direction of the conventional current in the part of the coil labelled AB? Write down only FROM A TO B or FROM B TO A. Will the coil experience a maximum or minimum turning effect (torque) if the coil is in the position as shown in the diagram above? State ONE way in which this turning effect (torque) can be increased. (1) 10. 1. 3 (1) (1) 10. 1. 4 10. 2 Alternating current (AC) is used for the long-distance transmission of electricity. 10. 2. 1 10. 2. Give a reason why AC is preferred over DC for long-distance transmission of electricity. An electric appliance with a power rating of 2 000 W is connected to a 230 V rms household mains supply. Calculate the: (a) (b) Peak (maximum) voltage rms current passing through the appliance (3) (3) [12] Please turn over (1) Copyright reserved Physical Sciences/P1 16 NSC DBE/Feb. –Mar. 2012 QUESTION 11 (Start on a new page. ) In the diagram shown below, electrons are released from a metal plate when light of a certain frequency is shone on its surface. incident light metal surface eA 11. 1 11. 2Name the phenomenon described above. The frequency of the incident light on the metal plate is 6,16 x 1014 Hz and electrons are released with a kinetic energy of 5,6 x 10-20 J. Calculate the: 11. 2. 1 11. 2. 2 Energy of the incident photons Threshold frequency of the metal plate (1) (3) (5) 11. 3 The brightness of the incident light is now increased. What effect will this change have on the following: (Write down only INCREASES, DECREASES or REMAINS THE SAME. ) 11. 3. 1 11. 3. 2 The reading on the ammeter Explain the answer. The kinetic energy of the released photoelectrons Explain the answer. 2) (2) [13] 125 150 TOTAL SECTION B: GRAND TOTAL: Copyright reserved Physical Sciences/P1 1 NSC DBE/Feb. –Mar. 2012 DATA FOR PHYSICAL SCIENCES GRADE 12 PAPER 1 (PHYSICS) GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 12 VRAESTEL 1 (FISIKA) TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISI ESE KONSTANTES NAME/NAAM Acceleration due to gravity Swaartekragversnelling Speed of light in a vacuum Spoed van lig in ‘n vakuum Planck's constant Planck se konstante Coulomb's constant Coulomb se konstante Charge on electron Lading op elektron Electron mass Elektronmassa Permittivity of free space Permittiwiteit van vry ruimteSYMBOL/SIMBOOL g c h k e me ?0 VALUE/WAARDE 9,8 m ·s-2 3,0 x 108 m ·s-1 6,63 x 10-34 J ·s 9,0 x 109 N ·m2 ·C-2 -1,6 x 10-19 C 9,11 x 10-31 kg 8,85 x 10-12 F ·m-1 Copyright reserved Please turn over Physical Sciences/P1 2 NSC DBE/Feb. –Mar. 2012 TABLE 2: FORMULAE/TABEL 2: FORMULES MOTION/BEWEGING v f = v i + a ? t 1 1 ? x = v i ? t + 2 a? t 2 or/of ? y = v i ? t + 2 a? t 2 2 2 v f = v i + 2a? x or/of v f = v i + 2a? y FORCE/KRAG 2 2 ? v +vf ? ? v +vf ? ?x = ? i ? ?t or/of ? y = ? i ? ?t ? 2 ? ? 2 ? Fnet = ma Fnet ? t = ? p ? p = mv f ? v i p = mv w = mg WORK, ENERGY AND POWER/ARBEID, ENERGIE EN DRYWING W = F? x cos ? 1 or/of K = mv 2 2 P= W ? t Ek = 1 mv 2 2 U = mgh Wnet = ? K ?K = K f ? K i or/of or/of or/of E P = mgh Wnet = ? Ek ?Ek = Ekf ? Eki P = Fv WAVES, SOUND AND LIGHT/GOLWE, KLANK EN LIG v=f? fL = v  ± vL fs v  ± vs or/of fL = v  ± vL fb v  ± vb 1 f E = hf T= E= h c ? E = Wo + Ek sin ? = m? a where/waar 1 E = hf and/en W0 = hf0 and/en Ek = mv 2 2 Copyright reserved Please turn over Physical Sciences/P1 3 NSC DBE/Feb. –Mar. 2012 ELECTROSTATICS/ELEKTROSTATIKA Q 1Q 2 r2 V E= d kQ Q U= 1 2 r Q C= V F= kQ r2 F E= q W V= q ? A C= 0 d E= ELECTRIC CIRCUITS/ELEKTRIESE STROOMBANE V R= I R s = R1 + R 2 + †¦ 1 1 1 = + + †¦ R p R1 R 2 W = Vq W = VI ? t W= I2R ? t V 2 ? t W= R emf ( ? ) = I(R + r) emk ( ? ) = I(R + r) q=I ? t W ? t P= P = VI P = I2R V2 P= R ALTERNATING CURRENT/WISSELSTROOM I rms = I max 2 Vmax 2 / I I wgk = maks 2 Vwgk = Vmaks 2 Paverage = Vrms I rms 2 Paverage = I rms R / / / Pgemiddeld = Vwgk I wgk Pgemiddeld = I 2 R wgk Vrms = / Paverage 2 Vrms = R Pgemiddeld = 2 Vwgk R Copy right reserved