GCSE Questions - Forces

Q3. Clark watches a game of cricket on the school field.

He sees the ball being hit with a bat but he notices that he hears the sound a short time after.

This is because the speed of light is greater than the speed of sound. He decides to do an experiment to measure the speed of sound waves in air.

(a) Describe which measurements he needs to measure this speed.

[2 marks]

(b) Which equation is used to calculate speed?

[1 mark]

(c) Describe how could get reliable results for this experiment.

[2 marks]

(Total 5 marks)