The diagram below shows a rubber tyre.
Why are there deep treads on the tyre?
This is because the deep treads _____________________.
increase the stopping distance of the car
reduce the amount of material used
enable the tyre to move smoothly
Which of the statements is/are correct?
A Smaller objects are always lighter.
B Gravity affects the weight of an object.
C The effect of weight cannot be felt but can be seen.
D The weight of an object depends on its mass only.
Which of the following spring balances will show the highest reading?
A spring balance was used to pull a block of wood as shown in the diagrams above. In which of the diagrams was the greatest force used?
Holly used a catapult to shoot some seeds against a tree. The catapult is shown below. What should she do if she wants to increase the force of her shots?
Marcus throws a ball upwards. It reaches a maximum height then falls to the ground.
Which of the following statements about the moving ball is true?
When the ball reaches its maximum height, gravity begins to act on it.
Which one of the following is not a force?
A boy lifted a 10g mass vertically from a table by means of a spring as shown in the diagram below. Then he measured the length of the spring. Different loads were used and the corresponding lengths of the spring were measured.
The results were then plotted on a graph as shown below.
Which one of the following does the point marked X on the graph show?
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