0 time. 2 Which graph represents the motion of a car that is travelling along a straight road with a uniformly increasing speed?
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1 1 1 The graph relaes o he moion of a falling body. y Which is a correc descripion of he graph? y is disance and air resisance is negligible y is disance and air resisance is no negligible y is speed and air resisance is negligible y is speed and air resisance is no negligible Which graph represens he moion of a car ha is ravelling along a sraigh road wih a uniformly increasing speed? acceleraion acceleraion displacemen displacemen 3 body, iniially a res, explodes ino wo masses M 1 and M ha move apar wih speeds v 1 and v respecively. Wha is he raio? M 1 M M 1 M M M M v 1 v M 1 4 mooris ravelling a 1 m s 1 can bring his car o res in a disance of 1 m. 1 If he had been ravelling a 3 m s 1, in wha disance could he bring he car o res using he same braking force? 17 m 3 m 5 m 9 m M 1 1 ompiled nd rearrnged by Sji handra Shakya
2 5 sone is hrown upwards from he op of a cliff. fer reaching is maximum heigh, i falls pas he cliff-op and ino he sea. The graph shows how he verical velociy v of he sone varies wih afer being hrown upwards. R and S are he magniudes of he areas of he wo riangles. v S R Wha is he heigh of he cliff-op above he sea? R S R + S R - S 6 Two similar spheres, each of mass m and ravelling wih speed v, are moving owards each oher. v v m m The spheres have a head-on elasic collision. Which saemen is correc? The spheres sick ogeher on impac. The oal kineic energy afer impac is mv. The oal kineic energy before impac is zero. The oal momenum before impac is mv. 7 Two railway rucks of masses m and 3m move owards each oher in opposie direcions wih speeds v and v respecively. These rucks collide and sick ogeher. Wha is he speed of he rucks afer he collision? v 4 v v 5v 4 ompiled nd rearrnged by Sji handra Shakya
3 3 8 wooden block of mass.6 kg is on a rough horizonal surface. force of 1 N is applied o he block and i acceleraes a 4. m s. wooden block 4. m s 1 N Wha is he magniude of he fricional force acing on he block?.4 N 9.6 N 14 N 16 N 9 projecile is fired a an angle α o he horizonal a a speed u, as shown. u Wha will be he verical and horizonal componens of is velociy afer a? ssume ha air resisance is negligible. The acceleraion of free fall is g. verical componen horizonal componen u sin α u cos α u sin α g u cos α g u sin α g u cos α u cos α u sin α g ompiled nd rearrnged by Sji handra Shakya
4 4 1 The graph of velociy agains for an objec moving in a sraigh line is shown. velociy Which of he following is he corresponding graph of displacemen agains? displacemen displacemen displacemen displacemen ompiled nd rearrnged by Sji handra Shakya
5 5 11 ball is released from res above a horizonal surface. The graph shows he variaion wih of is velociy. 1s impac velociy release X nd impac Y 3rd impac ball falling ball rising ball falling ball ball rising falling reas X and Y are equal. This is because he ball s acceleraion is he same during is upward and downward moion. he speed a which he ball leaves he surface afer an impac is equal o he speed a which i reurns o he surface for he nex impac. for one impac, he speed a which he ball his he surface equals he speed a which i leaves he surface. he ball rises and falls hrough he same disance beween impacs. 1 Two blocks X and Y, of masses m and 3m respecively, are acceleraed along a smooh horizonal surface by a force F applied o block X as shown. Wha is he magniude of he force exered by block X on block Y during his acceleraion? F F F 4 3 F X 3F 4 Y ompiled nd rearrnged by Sji handra Shakya
6 6 13 car wih fron-wheel drive acceleraes in he direcion shown. Which diagram bes shows he direcion of he oal force exered by he road on he fron wheels? 14 ball of mass kg ravelling a 8 m s 1 srikes a ball of mass 4 kg ravelling a m s 1. oh balls are moving along he same sraigh line as shown. 8ms 1 ms 1 v kg 4kg kg 4kg fer collision, boh balls move a he same velociy v. Wha is he magniude of he velociy v? 4ms 1 5ms 1 6ms 1 8ms 1 15 Which feaure of a graph allows acceleraion o be deermined? he area under a displacemen- graph he area under a velociy- graph he slope of a displacemen- graph he slope of a velociy- graph ompiled nd rearrnged by Sji handra Shakya
7 7 16 car is ravelling wih uniform acceleraion along a sraigh road. The road has marker poss every 1 m. When he car passes one pos, i has a speed of 1 m s 1 and, when i passes he nex one, is speed is m s 1. Wha is he car s acceleraion?.67 m s 1.5 m s.5 m s 6. m s 17 ennis ball is released from res a he op of a all building. Which graph bes represens he variaion wih of he acceleraion a of he ball as i falls, assuming ha he effecs of air resisance are appreciable? a a a a 18 moorcycle sun-rider moving horizonally akes off from a poin 1.5 m above he ground, landing 1 m away as shown. 1.5 m 1 m Wha was he speed a ake-off? 5m s 1 1 m s 1 15 m s 1 m s 1 ompiled nd rearrnged by Sji handra Shakya
8 8 19 ball falls verically and bounces on he ground. The following saemens are abou he forces acing while he ball is in conac wih he ground. Which saemen is correc? The force ha he ball exers on he ground is always equal o he weigh of he ball. The force ha he ball exers on he ground is always equal in magniude and opposie in direcion o he force he ground exers on he ball. The force ha he ball exers on he ground is always less han he weigh of he ball. The weigh of he ball is always equal in magniude and opposie in direcion o he force ha he ground exers on he ball. The diagram shows a siuaion jus before a head-on collision. lorry of mass kg is ravelling a. m s 1 owards a car of mass 9 kg ravelling a 3. m s 1 owards he lorry.. m s _ 1 3. m s _ 1 mass of lorry kg mass of car 9 kg Wha is he magniude of he oal momenum? 373 kn s 47 kn s 36 kn s 441 kn s 1 Which is no one of Newon's laws of moion? The oal momenum of a sysem of ineracing bodies remains consan, providing no exernal force acs. The rae of change of momenum of a body is direcly proporional o he exernal force acing on he body and akes place in he direcion of he force. If body exers a force on body, hen body exers an equal and opposiely-direced force on body. body coninues in a sae of res or of uniform moion in a sraigh line unless aced upon by some exernal force. ompiled nd rearrnged by Sji handra Shakya
9 9 The diagram shows wo pulses on he screen of a cahode ray oscilloscope. grid of 1 cm squares covers he screen. The base seing is 1 µs cm 1. How long does each pulse las? 1 cm µs 3 µs 4 µs 6 µs 3 boy hrows a ball verically upwards. I rises o a maximum heigh, where i is momenarily a res, and falls back o his hands. Which of he following gives he acceleraion of he ball a various sages in is moion? Take verically upwards as posiive. Neglec air resisance. rising a maximum heigh falling 9.81 m s m s 9.81 m s 9.81 m s 9.81 m s m s m s m s m s 9.81 m s 4 paricle is moving in a sraigh line wih uniform acceleraion. Which graph represens he moion of he paricle? disance velociy velociy acceleraion ompiled nd rearrnged by Sji handra Shakya
10 1 5 The diagram shows a velociy- graph for a car. 1 v / m s / s Wha is he disance ravelled beween = and = 4 s?.5 m 3. m m 8 m 6 projecile is launched a poin O and follows he pah OPQRS, as shown. ir resisance may be negleced. P Q R O S Which saemen is rue for he projecile when i is a he highes poin Q of is pah? The horizonal componen of he projecile s acceleraion is zero. The horizonal componen of he projecile s velociy is zero. The kineic energy of he projecile is zero. The momenum of he projecile is zero. 7 Wha gives he value of a body s acceleraion? he area under is displacemen- graph he area under is velociy- graph he gradien of is displacemen- graph he gradien of is velociy- graph ompiled nd rearrnged by Sji handra Shakya
11 11 8 cyclis is riding a a seady speed on a level road. ccording o Newon s hird law of moion, wha is equal and opposie o he backward push of he back wheel on he road? he force exered by he cyclis on he pedals he forward push of he road on he back wheel he ension in he cycle chain he oal air resisance and fricion force 9 Two equal masses ravel owards each oher on a fricionless air rack a speeds of 6 cm s 1 and 4 cm s 1. They sick ogeher on impac. 6 cm s 1 4 cm s 1 Wha is he speed of he masses afer impac? 1 cm s 1 cm s 1 4 cm s 1 5 cm s 1 3 The velociy of an objec during he firs five seconds of is moion is shown on he graph. velociy / m s / s Wha is he disance ravelled by he objec in his? 4 m m 5 m 1 m ompiled nd rearrnged by Sji handra Shakya
12 1 31 mooris ravelling a 1 m s 1 can bring his car o res in a braking disance of 1 m. In wha disance could he bring he car o res from a speed of 3 m s 1 using he same braking force? 17 m 3 m 5 m 9 m 3 n objec acceleraes in a direcion ha is always perpendicular o is moion. Wha is he effec, if any, of he acceleraion on he objec s speed and direcion? speed direcion changes changes changes consan consan changes consan consan 33 The diagram shows a velociy- graph for a mass moving up and down on he end of a spring. Which poin represens he velociy of he mass when a he lowes poin of is moion? velociy UP OWN 34 n objec has an iniial velociy u. I is subjeced o a consan force F for seconds, causing a consan acceleraion a. The force is no in he same direcion as he iniial velociy. vecor diagram is drawn o find he final velociy v. Wha is he lengh of side X of he vecor diagram? F F a u + a u v X ompiled nd rearrnged by Sji handra Shakya
13 13 35 sone is dropped from he op of a ower of heigh 4 m. The sone falls from res and air resisance is negligible. Wha is aken for he sone o fall he las 1 m o he ground?.38 s 1.4 s.5 s.9 s 36 Wha is mean by he weigh of an objec? he graviaional field acing on he objec he graviaional force acing on he objec he mass of he objec muliplied by graviy he objec s mass muliplied by is acceleraion 37 molecule of mass m ravelling horizonally wih velociy u his a verical wall a righ angles o he wall. I hen rebounds horizonally wih he same speed. Wha is is change in momenum? zero mu mu mu 38 fooball is dropped from he op of a all building. Which acceleraion- graph bes represens he moion of he fooball hrough he air? acceleraion acceleraion acceleraion acceleraion ompiled nd rearrnged by Sji handra Shakya
14 14 39 The graph shows he variaion wih of he momenum of a ball as i is kicked in a sraigh line. momenum p 1 1 p Iniially, he momenum is p 1 a 1. he momenum is p. Wha is he magniude of he average force acing on he ball beween s 1 and? p1 p p1 p 1 p1+ p p1+ p 1 4 lorry of mass kg is ravelling a. m s 1. car of mass 9 kg is ravelling a 3. m s 1 owards he lorry.. m s _ 1 3. m s _ 1 mass of lorry kg mass of car 9 kg Wha is he magniude of he oal momenum? 9 kn s 373 kn s 47 kn s 145 kn s 41 mass acceleraes uniformly when he resulan force acing on i is zero. is consan bu no zero. increases uniformly wih respec o. is proporional o he displacemen from a fixed poin. ompiled nd rearrnged by Sji handra Shakya
15 15 4 Which is a saemen of he principle of conservaion of momenum? Momenum is he produc of mass and velociy. Momenum is conserved only in elasic collisions. Momenum is conserved by all bodies in a collision. Momenum is conserved providing no exernal forces ac. 43 projecile is launched a poin O and follows he pah OPQRS, as shown. ir resisance may be negleced. Q P R O S Which saemen is rue for he projecile when i is a he highes poin Q of is pah? The horizonal componen of he projecile s acceleraion is zero. The horizonal componen of he projecile s velociy is zero. The kineic energy of he projecile is zero. The momenum of he projecile is zero. 44 Two markers M 1 and M are se up a verical disance h apar. seel ball x zero M 1 1 h M When a seel ball is released from res from a poin a disance x above M 1, i is found ha he ball akes 1 o reach M 1 and o reach M. Which expression gives he acceleraion of he ball? h h h ( ( 1 ) + 1 ) h ( 1 ) ompiled nd rearrnged by Sji handra Shakya
16 16 45 body falls from res in a vacuum near he Earh s surface. The variaion wih of is speed v is shown below. v Which graph shows he variaion wih of he speed v of he same ball falling in air a he same place on Earh? v v v v 46 Two equal masses ravel owards each oher on a fricionless air rack a speeds of 6 cm s 1 and 3 cm s 1. They sick ogeher on impac. 6 cm s 1 3 cm s 1 Wha is he speed of he masses afer impac? 15 cm s 1 cm s 1 3 cm s 1 45 cm s 1 ompiled nd rearrnged by Sji handra Shakya
17 17 47 car a res in a raffic queue moves forward in a sraigh line and hen comes o res again. The graph shows he variaion wih of is displacemen. displacemen/m /s Wha is is speed while i is moving?.7 m s 1.8 m s m s m s 1 48 n objec is dropped from a grea heigh and falls hrough air of uniform densiy. The acceleraion of free fall is g. Which graph could show he variaion wih of he acceleraion a of he objec? a a a a g g g g 49 Which of he following is a saemen of he principle of conservaion of momenum? Momenum is he produc of mass and velociy. In an elasic collision, momenum is consan. The momenum of an isolaed sysem is consan. The force acing on a body is proporional o is rae of change of momenum. ompiled nd rearrnged by Sji handra Shakya
18 18 5 In he absence of air resisance, a sone is hrown from P and follows a parabolic pah in which he highes poin reached is T. The sone reaches poin Q jus before landing. T P Q The verical componen of acceleraion of he sone is zero a T. greaes a T. greaes a Q. he same a Q as a T. 51 When a car driver sees a hazard ahead, she applies he brakes as soon as she can and brings he car o res. The graph shows how he speed v of he car varies wih afer he hazard is seen. v 1 Which graph represens he variaion wih of he disance s ravelled by he car afer he hazard has been seen? s s 1 1 s 1 1 s ompiled nd rearrnged by Sji handra Shakya
19 19 5 n objec falls 1. m from res before enering some waer. ssuming negligible air resisance, wha is he aken o reach he waer and he speed wih which he objec reaches he waer? / ms speed / m s paricle of mass m srikes a verical rigid wall perpendicularly from he lef wih velociy v. m v rigid wall If he collision is perfecly elasic, he oal change in momenum of he paricle ha occurs as a resul of he collision is mv o he righ. mv o he lef. mv o he righ. mv o he lef. 54 ball falls verically and bounces on he ground. The following saemens are abou he forces acing while he ball is in conac wih he ground. Which saemen is correc? The force ha he ball exers on he ground is always equal o he weigh of he ball. The force ha he ball exers on he ground is always equal in magniude and opposie in direcion o he force he ground exers on he ball. The force ha he ball exers on he ground is always less han he weigh of he ball. The weigh of he ball is always equal in magniude and opposie in direcion o he force ha he ground exers on he ball. ompiled nd rearrnged by Sji handra Shakya
20 55 force F is applied o a freely moving objec. one insan of, he objec has velociy v and acceleraion a. Which quaniies mus be in he same direcion? a and v only a and F only v and F only v, F and a 56 fooball is dropped from he op of a all building. Which acceleraion- graph bes represens he moion of he fooball hrough he air? acceleraion acceleraion acceleraion acceleraion 57 consan mass undergoes uniform acceleraion. Which of he following is a correc saemen abou he resulan force acing on he mass? I increases uniformly wih respec o. I is consan bu no zero. I is proporional o he displacemen from a fixed poin. I is proporional o he velociy. ompiled nd rearrnged by Sji handra Shakya
21 1 58 Two markers M 1 and M are se up a verical disance h apar. seel ball x M 1 zero 1 h M seel ball is released a zero from a poin a disance x above M 1. The ball reaches M 1 a 1 and reaches M a. The acceleraion of he ball is consan. Which expression gives he acceleraion of he ball? h h ( + ) 1 h ( 1) ( h 1 ) 59 car driver sharply presses down he acceleraor when he raffic lighs go green. The resulan horizonal force acing on he car varies wih as shown. force Which graph shows he variaion wih of he speed of he car? speed speed speed speed ompiled nd rearrnged by Sji handra Shakya
22 6 sone is projeced horizonally in a vacuum and moves along a pah as shown. X is a poin on his pah. XV and XH are verical and horizonal lines respecively hrough X. XT is he angen o he pah a X. pah of sone X H V T long which direcion or direcions do forces ac on he sone a X? XV XH XV and XH XT 61 paricle is moving in a sraigh line wih uniform acceleraion. Which graph represens he moion of he paricle? disance velociy velociy acceleraion ompiled nd rearrnged by Sji handra Shakya
23 3 6 Which is a saemen of he principle of conservaion of momenum? force is equal o he rae of change of momenum of he body upon which i acs. In a perfecly elasic collision, he relaive momenum of he bodies before impac is equal o heir relaive momenum afer impac. The momenum of a body is he produc of he mass of he body and is velociy. The oal momenum of a sysem of ineracing bodies remains consan, providing no exernal force acs. 63 The graph shows velociy- plos for wo vehicles X and Y. The acceleraions and disances ravelled by he wo vehicles can be esimaed from hese plos. 5 X velociy / m s Y / s Which saemen is correc? The acceleraions of X and Y are he same a.5 s. The iniial acceleraion of Y is greaer han ha of X. The disance ravelled by X is greaer han ha ravelled by Y in he 5 s period. The disances ravelled by X and Y in he 5 s period are he same. ompiled nd rearrnged by Sji handra Shakya
24 4 64 projecile is fired a an angle α o he horizonal a a speed u, as shown. u α Wha are he verical and horizonal componens of is velociy afer a? ssume ha air resisance is negligible. The acceleraion of free fall is g. verical componen horizonal componen u sin α u cos α u sin α g u cos α g u sin α g u cos α u cos α u sin α g 65 force F is applied o a freely moving objec. one insan of, he objec has velociy v and acceleraion a. Which quaniies mus be in he same direcion? a and v only a and F only v and F only v, F and a 66 block of mass.6 kg is on a rough horizonal surface. force of 1 N is applied o he block and i acceleraes a 4. m s. 4. m s block 1 N Wha is he magniude of he fricional force acing on he block?.4n 5.3 N 6.7 N 9.6 N ompiled nd rearrnged by Sji handra Shakya
25 5 67 The symbol g represens he acceleraion of free fall. Which of hese saemens is correc? g is graviy. g is reduced by air resisance. g is he raio weigh / mass. g is he weigh of an objec. 68 paricle moves along a sraigh line. paricular propery K of he paricle's moion is ploed agains. K any, he slope of he graph is he acceleraion of he paricle. Wha is he propery K? he displacemen of he paricle he disance ravelled by he paricle he speed of he paricle he velociy of he paricle 69 The diagram shows a cannon ball fired from a cannon. cannon cannon ball The mass of he cannon is 1 kg and he mass of he cannon ball is 1 kg. The recoil velociy of he cannon is 5 m s 1 horizonally. Wha is he horizonal velociy of he cannon ball? m s 1 5 m s 1 m s 1 5 m s 1 ompiled nd rearrnged by Sji handra Shakya
26 6 7 sone is hrown verically upwards. suden plos he variaion wih of is velociy. 4 velociy / m s / s 6 Wha is he verical displacemen of he sone from is saring poin afer 5 seconds? m 5 m 45 m 65 m 71 Which graph represens he moion of a car ha is ravelling along a sraigh road wih a speed ha increases uniformly wih? acceleraion acceleraion displacemen displacemen ompiled nd rearrnged by Sji handra Shakya
27 7 7 car wih fron-wheel drive acceleraes in he direcion shown. Which diagram bes shows he direcion of he oal force exered by he road on he fron wheels? 73 The diagram shows a velociy- graph for a car. velociy / m s / s Wha is he disance ravelled during he firs 4. s?.5 m 3. m m 8 m ompiled nd rearrnged by Sji handra Shakya
28 8 74 sone is hrown upwards and follows a curved pah. ir resisance is negligible. Why does he pah have his shape? The sone has a consan horizonal velociy and consan verical acceleraion. The sone has a consan horizonal acceleraion and consan verical velociy. The sone has a consan upward acceleraion followed by a consan downward acceleraion. The sone has a consan upward velociy followed by a consan downward velociy. 75 box of mass 8. kg ress on a horizonal, rough surface. sring aached o he box passes over a smooh pulley and suppors a. kg mass a is oher end. rough surface box 8. kg smooh pulley. kg When he box is released, a fricion force of 6. N acs on i. Wha is he acceleraion of he box? 1.4 m s 1.7 m s. m s.5 m s ompiled nd rearrnged by Sji handra Shakya
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