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Past GCSE Physics Questions
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Science - Higher Tier
Question 1.
The diagram shows a ray of light travelling from one medium into another.
a) Copy the diagram. On your diagram, mark the angle of incidence (i) and the angle of refraction (r).
b) When the light travels from medium A to medium B, does its speed increase or decrease?
c) Give a reason for your answer to part b).
d) What do we call the process by which the direction of light changes when it goes form one medium to another?
author
12-01-00
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Question 2.
The diagram shows what happens when white light travels through a prism. The light is dispersed, giving a range of colours.
a) What do we call the range of colours produced in this way?
b) The diagram shows the position of the range of colours. On the diagram, mark the positions of red (R) and violet (V).
c) A radio wave travels at a speed of 300,000,000 m/s. What is the wave length of the wave if the frequency is 200kHz? Show the equation that you are using, and show all your working out.
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