A pneumatic capsule, carrying a medical sample, travels at a constant speed along a straight horizontal tube. The capsule passes through two photoelectric sensors connected to a micro-timer.
The length of the capsule is 12.6 cm12.6\text{ cm}12.6 cm. The capsule takes 180 ms180\text{ ms}180 ms to pass through the first photoelectric sensor.
State the relationship between average speed, distance, and time.
Calculate the average speed of the capsule as it passes through the first photoelectric sensor. Give your answer in cm/s\text{cm/s}cm/s.
State the time taken for the capsule to pass through the second photoelectric sensor.
24 exam-style questions on Edexcel IGCSE Physics Movement and position. Each one has a worked solution and a mark scheme showing where the marks go.