Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Waves
356 practice questions
Topics covered
Practice questions
131–140 of 172 · Easy
Question 131
4 marks · Easy
Answer and see the solution →The electromagnetic spectrum is made up of different types of waves. Each type has different wavelengths and frequencies.
(a)[1 mark]Name the type of electromagnetic wave with the shortest wavelength.
(b)[1 mark]State one use for this type of wave.
(c)[1 mark]Which type of wave has a longer wavelength than visible light but a shorter wavelength than radio waves?
(d)[1 mark]Give a use for this type of wave.
Question 132
4 marks · Easy
Answer and see the solution →A scientist wants to use different types of electromagnetic waves for different purposes. She has a radio, a remote control, and a thermometer that can measure heat without touching the object.
(a)[1 mark]Which type of electromagnetic wave is used by the radio to carry signals?
(b)[1 mark]Which type of wave is used by the remote control?
(c)[1 mark]Which type of wave does the thermometer use to measure heat?
(d)[1 mark]Arrange these three waves in order of increasing frequency.
Question 133
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 134
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 135
1 mark · Easy
Answer and see the solution →State the law of reflection.
Question 136
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 137
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 138
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 139
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 140
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?