IGCSE Physics (0625) — May–June 2025, Paper 43

A car travels at a speed of 20 m/s. The driver applies the brakes when he sees a red traffic light. Fig. 1.1 shows the speed-time graph for the car. Determine the speed of the car…

Fig. 2.1 shows a space vehicle which consists of a capsule and a nose cone. The space vehicle is moving at a velocity of 7800 m/s. The mass of the space vehicle is 840 kg. Show…

Fig. 3.1 shows an archer aiming an arrow at a target. The archer pulls back on the bow string, doing a total of 110 J of work. Her hand moves a distance of 0.45 m. The bow is bent…

Fig. 4.1 shows a pan with a copper base on a hotplate. The hotplate heats the pan and the water. Explain how thermal energy is conducted through the copper base.

Fig. 5.1 shows four rays of red light, P, Q, R and S, coming from a spotlight in a swimming pool. Define, in words, refractive index for a ray of light travelling from air to…

Ultrasound is an example of a longitudinal wave. Define the term ultrasound.

A student sets up the circuit shown in Fig. 7.1. Determine the value of the current measured by the ammeter.

State what is meant by an electric field.

Fig. 9.1 shows a transformer. It has a soft-iron core with a primary coil wound on one side and a secondary coil wound on the other side. There is an alternating current in the…

Define a light-year in words.

Define the half-life of a radioactive source.