Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter
Properties of Waves
122 practice questions
Topics covered
Practice questions
81–90 of 122
Question 81
2 marks · Normal
Answer and see the solution →A student uses a ripple tank and counts 30 wave crests passing a fixed point in 10 seconds. What is the frequency of the waves?
Question 82
2 marks · Normal
Answer and see the solution →Give the scientific name for the time taken for one complete wave to pass a given point, and state its standard SI unit.
Question 83
3 marks · Normal
Answer and see the solution →Ocean waves travel at 12 m/s and have a frequency of 0.2 Hz.
Calculate the wavelength of the ocean waves. Give your answer with the correct unit.
Question 84
1 mark · Easy
Answer and see the solution →What is the name given to the change in direction of a wave as it passes from one material into another?
Question 85
1 mark · Easy
Answer and check →Which of the following best describes what happens when a water wave travels from deep water to shallow water at an angle to the boundary?
- A.The wave slows down and bends.
- B.The wave speeds up and bends.
- C.The wave changes direction but not speed.
- D.The wave stays the same speed and direction.
Question 86
3 marks · Easy
Answer and see the solution →(a)[1 mark]State the Law of Reflection.
(b)[1 mark]What is the angle of reflection when the angle of incidence is ?
(c)[1 mark]Draw a labelled diagram to show a wave reflecting from a flat barrier. Include the normal, angle of incidence, and angle of reflection.
Question 87
2 marks · Easy
Answer and see the solution →Explain, using wave ideas, why a straight pencil appears bent when it is placed at an angle in a glass of water.
Question 88
1 mark · Easy
Answer and check →What happens to the speed of light as it passes from air into glass?
- A.It increases
- B.It decreases
- C.It stays the same
- D.It becomes zero
Question 89
1 mark · Easy
Answer and see the solution →Name the line that is always drawn at right angles to the barrier when showing reflection or refraction of waves.
Question 90
2 marks · Easy
Answer and see the solution →Describe what happens to a sound wave as it passes from warm air into cold air, and explain your answer in terms of wave properties.