A man walks along a path from X to Y. The diagram shows the path from above. [Figure 4.1] The man measures the distance he walks and the time taken. Which quantity can be calculated using this data only?

A student walks at a constant speed. He takes 100s to walk 160 paces. The length of each pace is 0.80 m. How far does…

A student drops, from rest, a table-tennis ball in air. What happens to the velocity and to the acceleration of the b…

A cyclist takes a ride lasting 25 s. The diagram shows how her distance travelled from the starting position varies w…

Light is incident on one face of a glass block at an angle of incidence of 40°. The glass block is in air. The refrac…

In a short-sighted eye, light from distant objects is not focused on the retina. Where is this light focused and what…

Below are four statements about the uses of electromagnetic radiation. Gamma rays are used in medical treatment. Infr…