Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter
Light and Sound
70 practice questions
Topics covered
Practice questions
1–10 of 34 · Easy
Question 1
1 mark · Easy
Answer and see the solution →What is the name given to objects that reflect light but do not produce their own light?
Question 2
1 mark · Easy
Answer and check →What is the angle between the incident ray and the normal called?
- A.angle of incidence
- B.angle of refraction
- C.angle of deviation
- D.angle of reflection
Question 3
1 mark · Easy
Answer and see the solution →State the law of reflection.
Question 4
3 marks · Easy
Answer and see the solution →A ray of light strikes a flat mirror as shown in the diagram below.
Ray of light striking a mirror (a)[1 mark]On the diagram, draw the normal at the point B where the ray meets the mirror.
(b)[1 mark]Label the angle of incidence on your diagram.
(c)[1 mark]Sketch the reflected ray and label it.
Question 5
3 marks · Easy
Answer and see the solution →The diagram below shows a ray of light entering a rectangular glass block from air.
Ray of light entering glass block (a)[1 mark]Draw the normal at point F where the ray meets the glass block.
(b)[1 mark]Show the path of the refracted ray inside the glass block.
(c)[1 mark]Label the angle of incidence and the angle of refraction on your diagram.
Question 6
1 mark · Easy
Answer and see the solution →What term describes the change in direction of light as it passes from one medium to another?
Question 7
1 mark · Easy
Answer and check →Which one of the following is a luminous object?
- A.The Sun
- B.A wooden table
- C.The Moon
- D.A white wall
Question 8
1 mark · Easy
Answer and see the solution →Light travels more slowly in glass than in air. What effect does this have on the speed and direction of a light ray passing from air into glass?
Question 9
1 mark · Easy
Answer and see the solution →State what is meant by the term ‘critical angle’ when referring to light travelling from glass into air.
Question 10
3 marks · Easy
Answer and see the solution →A ray of light travels from a type of glass (refractive index 1.62) into air.
(a)[1 mark]Write down the equation linking the critical angle and the refractive index of the glass.
(b)[2 marks]Calculate the value of the critical angle, to 2 decimal places.