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- 1. Multiple Choice
A car is accelerating along a road in the direction shown. The wheel shown is connected to the engine. In which direction is the force of friction exerted by the road on the car tyre?
A
B
C
D
- 2. Multiple Choice
The speed-time graph shown is for a model car. The resultant force on the car is 0.60 N. What is the mass of the car?
0.060 kg
0.20 kg
1.8 kg
5.4 kg
- 3. Multiple Choice
Four forces, P, Q, R, and S, act on an object. The directions of the forces are shown. The object moves vertically upwards with a constant speed. Which statement must be correct?
All four forces are the same magnitude.
P and R are equal in magnitude but both are larger than Q or S.
Q and S are equal in magnitude but P is larger than R.
Q and S are equal in magnitude and P and R are equal in magnitude
- 4. Multiple Choice
Which free body diagram shows the directions of the forces acting on a rocket travelling vertically upwards?
A
B
C
D
- 5. Multiple Choice
A car is moving forward. Two forces act on the car as shown. When force F equals force R, which statement is correct?
The car is moving with non-uniform acceleration.
The car is moving with uniform acceleration.
The car is moving with uniform velocity.
The car is stopping.
- 6. Multiple Choice
A box of mass 50 kg is pushed across a floor with a force of 340 N. The total frictional force acting on the box is 320 N. What is the acceleration of the box?
0.40 m/s2
2.5 m/s2
6.4 m/s2
6.8 m/s2
- 7. Multiple Choice
A large wooden crate of mass 160 kg is pushed across a rough floor with a force of 240 N. The acceleration of the crate is 0.50 m/s2. What is the frictional force on the crate?
80 N
120 N
160 N
1600 N
- 8. Multiple Choice
A block of mass 5 kg is pushed along a road with a force if 30 N. The frictional force is 10 N. What is the acceleration of the block?
2.0 m/s2
4.0 m/s2
6.0 m/s2
8.0 m/s2
- 9. Multiple Choice
A block of mass 5 kg is pushed along a road with a force if 30 N. The frictional force is 10 N. What is the acceleration of the block?
2.0 m/s2
4.0 m/s2
6.0 m/s2
8.0 m/s2
- 10. Multiple Choice
A deep-sea diver is sinking into deep water at a constant speed of 0.5 m/s. What is the resultant force acting on the diver, if he, together with his diving gear, has a total mass of 100 kg?
0 N
100 N downwards
1000 N downward
1000 N upwards
- 11. Multiple Choice
A distance-time graph of an object is shown below. Which statement about the force(s) acting on the object is true?
The air resistance acting on the object is greater than its weight.
The forces acting on the object are balanced.
The only force acting on the object is its weight.
There is no friction acting on the object.
- 12. Multiple Choice
A block of mass 5 kg is pulled across a rough surface by a 48 N force, against a friction force F. The block is slowing down at a rate of 2 m/s2. What is the value of F?
10 N
38 N
48 N
58 N
- 13. Multiple Choice
A heavy bowling ball and a light feather are dropped from a height inside a vacuum chamber. They are released at the same time, and both objects undergo free fall. Which statement correctly describes their motion?
Both objects fall with the same speed.
The heavy bowling ball experiences a greater acceleration.
The heavy bowling ball reaches the ground first.
The feather experiences a greater force of air resistance.
- 14. Multiple Choice
A student wishes to investigate how the mass of a trolley affects its aceleration. She applies a constant horizontal force F to the trolley. Different masses are placed on the trolley and the acceleration is measured. The graph shows the results. What is the value of F?
0.28 N
0.66 N
0.80 N
1.51 N
- 15. Multiple Choice
The diagram shows an object A being pushed along a smooth surface by an constant 5N force. If the weight of object A is suddenly increased by 8N, which of the following correctly describes the change in its motion?
Object A will maintain its current acceleration.
Object A will maintain its current speed.
Object A will slow down.
Object A will stop moving immediately.
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