1. The property of matter that causes an object to resist changes in its state of motion is called:
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1 SPH3U Exa Review
2 1. The property of atter that causes an object to resist changes in its state of otion is called: A. friction B. inertia C. the noral force D. tension
3 1. The property of atter that causes an object to resist changes in its state of otion is called: A. friction *B. inertia C. the noral force D. tension
4 . If the net force on an object is increased, the agnitude of its increases. A. acceleration B. velocity C. both A and B D. neither A nor B
5 . If the net force on an object is increased, the agnitude of its increases. *A. acceleration B. velocity C. both A and B D. neither A nor B
6 3. The SI unit for weight is the: A. Joule B. kilogra C. Newton D. pound
7 3. The SI unit for weight is the: A. Joule B. kilogra *C. Newton D. pound
8 4. The jerking you feel when the vehicle in which you are riding is stopped suddenly is best explained using which of Newton's Laws? A. Newton's 1 st Law B. Newton's nd Law C. Newton's 3 rd Law D. Universal Gravitation
9 4. The jerking you feel when the vehicle in which you are riding is stopped suddenly is best explained using which of Newton's Laws? *A. Newton's 1 st Law B. Newton's nd Law C. Newton's 3 rd Law D. Universal Gravitation
10 5. An object of ass 4 kg is travelling at a constant velocity of /s [E]. What is the net force on the object? A. 0 N B. N [E] C. 8 N [E] D. It cannot be deterined.
11 5. An object of ass 4 kg is travelling at a constant velocity of /s [E]. What is the net force on the object? *A. 0 N B. N [E] C. 8 N [E] D. It cannot be deterined.
12 6. If the distance between two objects is halved the gravitational attraction between the is: A. the sae B. doubled C. halved D. quadrupled
13 6. If the distance between two objects is halved the gravitational attraction between the is: A. the sae B. doubled C. halved *D. quadrupled
14 7. Which of Newton's Laws of Motion applies to objects in outer space? A. Newton's 1 st Law B. Newton's nd Law C. Newton's 3 rd Law D. all of the above
15 7. Which of Newton's Laws of Motion applies to objects in outer space? A. Newton's 1 st Law B. Newton's nd Law C. Newton's 3 rd Law *D. all of the above
16 8. A agnet is sliding down a fridge door. What is the direction of the noral force acting on the agnet? A. up B. down C. into the door D. out of the door
17 8. A agnet is sliding down a fridge door. What is the direction of the noral force acting on the agnet? A. up B. down C. into the door *D. out of the door
18 9. A book of weight 0 N is resting on a table. If a horizontal force of 10 N [right] is applied to the book, the agnitude of the noral force acting on the book will be: A. 0 N B. 10 N C. 0 N D. 30 N
19 9. A book of weight 0 N is resting on a table. If a horizontal force of 10 N [right] is applied to the book, the agnitude of the noral force acting on the book will be: A. 0 N B. 10 N *C. 0 N D. 30 N
20 10. Object A of ass kg is attached to Object B of ass 4 kg by a string suspended over a pulley. The tension in the part of the string attached to Object A is the tension in the part of the string attached to Object B. A. the sae as B. less than C. greater than D. It cannot be deterined.
21 10. Object A of ass kg is attached to Object B of ass 4 kg by a string suspended over a pulley. The tension in the part of the string attached to Object A is the tension in the part of the string attached to Object B. *A. the sae as B. less than C. greater than D. It cannot be deterined.
22 11. An object of weight 40 N is being pushed at constant velocity across a surface with a force of 10 N [right]. What is the force of friction acting on the object? A. 10 N [down] B. 10 N [left] C. 50 N [down] D. 50 N [left]
23 11. An object of weight 40 N is being pushed at constant velocity across a surface with a force of 10 N [right]. What is the force of friction acting on the object? A. 10 N [down] *B. 10 N [left] C. 50 N [down] D. 50 N [left]
24 1. A book is resting on a table. The Earth is exerting a gravitational force of 8 N [down] on the book. Which of the following is the reaction force? A. 8 N [up] the table exerts on the book B. 8 N [down] the book exerts on the table C. 8 N [up] the book exerts on the Earth D. There is no reaction force.
25 1. A book is resting on a table. The Earth is exerting a gravitational force of 8 N [down] on the book. Which of the following is the reaction force? A. 8 N [up] the table exerts on the book B. 8 N [down] the book exerts on the table *C. 8 N [up] the book exerts on the Earth D. There is no reaction force.
26 13. A block of weight 4.0 N is suspended fro the ceiling of an elevator by a piece of string. If the elevator is accelerating at 1.0 /s [down], the agnitude of the tension in the string is: A. zero B. less than 4.0 N C. 4.0 N D. greater than 4.0 N
27 13. A block of weight 4.0 N is suspended fro the ceiling of an elevator by a piece of string. If the elevator is accelerating at 1.0 /s [down], the agnitude of the tension in the string is: A. zero *B. less than 4.0 N C. 4.0 N D. greater than 4.0 N
28 14. Fuzzy dice are hanging fro the rear-view irror of a car that is travelling backward at constant speed. The dice are: A. angled toward the back of the car B. angled toward the front of the car C. hanging straight down D. It cannot be deterined.
29 14. Fuzzy dice are hanging fro the rear-view irror of a car that is travelling backward at constant speed. The dice are: A. angled toward the back of the car B. angled toward the front of the car *C. hanging straight down D. It cannot be deterined.
30 15. Running shoes are designed to do what to the force of friction between the runner and the ground? A. increase B. decrease C. neither A nor B D. alternately A and B
31 15. Running shoes are designed to do what to the force of friction between the runner and the ground? *A. increase B. decrease C. neither A nor B D. alternately A and B
32 1. A sled is being pulled rightward across a surface by a horizontal rope tied to it. Draw the FBD for the sled. FN Ff FA Fg
33 . If the rope is at an angle above the horizontal, how will the other forces on the sled be affected? Explain why.
34 . If the rope is at an angle above the horizontal, how will the other forces on the sled be affected? Explain why. Weight will not be affected. Noral force will be decreased because the applied force will have a vertical upward coponent. Friction will be decreased because the noral force will be decreased.
35 3. What is the net force acting on the sled? Explain why it is ipossible to describe the otion of the sled without ore inforation. The net force equal to the horizontal coponent of the applied force inus the frictional force (vertical forces cancel out). You don t know if the sled is speeding up or slowing down because you don t know which force is larger.
36 A 0.40-kg cart on a table is attached by a string to a suspended ass of 0.5-kg. A frictional force of 1. N opposes the otion of the cart. What is (a) the agnitude of the acceleration of the cart and (b) the tension in the string between the cart and the ass?
37 A 0.40-kg cart on a table is attached by a string to a suspended ass of 0.5-kg. A frictional force of 1. N opposes the otion of the cart. What is (a) the agnitude of the acceleration of the cart a a F net g 0.5kg 9.8 s s 0.5kg F s c f kg N 1.93 s or1.9 s
38 and (b) the tension in the string between the cart and the ass? For the suspended ass: Fnet sg T a g T s s T T T s ( g a) (0.5kg)(9.8.0 N s 1.93 s )
39 A box of ass 15 kg slides across a floor and coes to a coplete stop. Its initial speed was 4. /s and k = Find (a) the acceleration of the box and (b) the distance travelled by the box before stopping.
40 A box of ass 15 kg slides across a floor and coes to a coplete stop. Its initial speed was 4. /s and k = Find (a) the acceleration of the box a a F net F f s or.9 g g.94 s s [ backwards]
41 and (b) the distance travelled by the box before stopping.? d v v a s s s d v for a v d d a v v s s
42 Two skaters are standing on ice facing each other. Skater 1 pushes on skater with a force of 70.0 N [E]. The coefficient of friction between the skaters and the ice is The ass of skater 1 is 50.0 kg and the ass of skater is 70.0 kg. Calculate the acceleration of each skater.
43 Two skaters are standing on ice facing each other. Skater 1 pushes on skater with a force of 70.0 N [E]. The coefficient of friction between the skaters and the ice is The ass of skater 1 is 50.0 kg and the ass of skater is 70.0 kg. Calculate the acceleration of each skater. For Skater : a a a Fnet FA g 70.0 N (0.10)(70.0 kg)( s and the direction 70.0 kg would be[ East] s )
44 Two skaters are standing on ice facing each other. Skater 1 pushes on skater with a force of 70.0 N [E]. The coefficient of friction between the skaters and the ice is The ass of skater 1 is 50.0 kg and the ass of skater is 70.0 kg. Calculate the acceleration of each skater. For Skater 1: a a a Fnet FA g 70.0 N (0.10)(50.0kg)( s and the direction 50.0kg s would be[ West] )
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