Questions 1 and 2 refer to the graph below. The graph is a displacement-time graph for a runner. Displacement / m. Time / s

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Transcription:

Quesions 1 and 2 refer o he graph below. The graph is a displacemen-ime graph for a runner. 80 isplacemen / m 60 40 0 0 4 6 8 / s 1 The velociy of he runner a 5 s is approximaely 8 m s 9 m s C 40 m s

2 v v v v C C

3 Which of he following graphs could be he velociy-ime graph for he ball? c c (oal for Quesion = 1 mark)

4

5 projecile is launched a an angle of 45 o he horizonal. Ignoring air resisance, which pair of graphs correcly shows how he verical and horizonal componens of velociy vary wih ime for he projecile unil i lands? Verical componen Horizonal componen c (oal for Quesion 4 = 1 mark)

6 The graph shows sress agains srain up o he breaking poin for wo maerials X and Y. Sress X Y Srain Which row in he able correcly idenifies he behaviour of each maerial? X Y brile ducile ducile brile c ducile hard brile hard (oal for Quesion 5 = 1 mark)

7 ball of volume V b and densiy ρ b is released in a volume V l of liquid wih densiy ρ l. V l V b The uphrus on he ball is given by V b ρ b g V b ρ l g c V l ρ b g V l ρ l g (oal for Quesion 6 = 1 mark) 8 isplacemen can be found from he area under a disance-ime graph. area under a velociy-ime graph. C gradien of a disance-ime graph. gradien of a velociy-ime graph. (Toal for Quesion 1 mark) 9 isance ravelled can be found from he area under a velociy-ime graph area under an acceleraion-ime graph C gradien of a force-ime graph gradien of a velociy-ime graph

10 ball is hrown sraigh up in he air and caugh when i comes down. Which graph bes shows he velociy of he ball from he momen i is released unil jus before i is caugh? C C

Use he following graph o answer Quesions 11 and 12 The graph shows how velociy varies wih ime for an objec. 25 20 /ms ÿ1 15 10 5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 / s 11. The oal disance ravelled by he objec in 4 s is 20 m 40 m C 60 m 80 m 12 The acceleraion a 3 s is 10ms 2 7ms 2 C 5ms 2 0ms 2

13 ball is hrown verically upwards. I reaches a maximum heigh, moves downwards and is caugh by he hrower a a ime. Which of he following is he kineic energy-ime graph for he ball? Kineic energy Kineic energy Kineic energy Kineic energy C C

The velociy-ime graph for an objec is shown. Quesions 14 and 15 refer o he graph below. 4 / m s 1 3 2 1 0 0 2 4 6 8 10 12 14 16 18 20 / s 14 The iniial acceleraion of he objec is 0.40 m s 2 0.50 m s 2 C 2.0 m s 2 9.0 m s 2 15 The displacemen of he objec during he ime of deceleraion is 29 m 29 m C 15 m 15 m

16 lif carries people from one floor up o he floor above. Which graph shows how he acceleraion of he lif varies wih ime for he complee journey? ssume ha he upward direcion is posiive. cceleraion cceleraion + + 0 0 cceleraion cceleraion + + 0 0 C C (Toal for Quesion 1 mark)

17 cceleraion can be found from he area under a disance-ime graph. area under a velociy-ime graph. C gradien of a disance-ime graph. gradien of a velociy-ime graph. (Toal for Quesion 1 mark) 18 can be found from he area under a displacemen-ime graph area under a force-ime graph C gradien of a displacemen-ime graph gradien of an acceleraion-ime graph

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