1. The graph above shows how the velocity of an object changes with time. The object is
- moving with constant velocity
- moving with uniform acceleration
- moving with increasing velocity
- moving with decreasing acceleration
2. The graph below shows how the velocity of a car changes with time. Find the distance traveled by the car in 25 seconds.
- 875 m
- 500 m
- 1125 m
- 375 m
3. The graph below shows how the velocity of an object changes with time. What is the acceleration of the object in the first 15s?
- 2 ms-2
- -2 ms-2
- 3 ms-2
- -3 m-2
5. The graph below shows part of a car journey. Which of the following statements are true regarding the motion of the car?
- The car is decelerating in the last 5s
- The car changes direction at 10s.
- The speed of the car is decreasing at a uniform rate in the first 10s.
- The car is moving away from the reference point in the last 5s of motion.
6. Which of the following statements are correct about inertia or Newton's First Law?
- Inertia is the tendency of an object to resist changes to its state of motion.
- Newton's first law state that if there is no external force acts on a moving object, the speed of the object will decrease.
- An object in motion tends to stay in motion with the same speed in a straight line unless a non-zero net force is acted upon it.
- The larger the mass of an object, the greater the effect of inertia on the object.
7. A train in motion is more difficult to be stopped compare to a car because
- a train normally moves with higher speed compare with a car.
- the friction of the rail way is lower than the tar road.
- the inertia of the train is very big compare with the car.
8. The figure shows a coin resting on a cardboard placed on a glass. When the cardboard is pulled away quickly, the coin will drop into the glass. The principles involves are
- gravitational force
- principle of conservation of momentum
- principle of conservation of motion
9. By referring to the diagram below, what will happen to thread A and B when thread B is pulled quickly?
- Thread A will snap
- Thread B will snap
- Both thread A and B will snap at the same time.
10. The diagram shows a petrol truck built with a few small tanks instead of one big tank. This is because
- a truck with smaller tank can move faster
- if there is leakage in a tank, not all petrol will flow out.
- the inertia impact of the liquid will be smaller when the lorry stops suddenly.