Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Waves
356 practice questions
Topics covered
Practice questions
131–140 of 356
Question 131
3 marks · Normal
Answer and see the solution →A wave has a time period of 0.02 seconds. Calculate its frequency.
Question 132
4 marks · Normal
Answer and see the solution →A student makes waves on the surface of a pool by repeatedly dipping her finger up and down in the water.
(a)[1 mark]State what is meant by a transverse wave.
(b)[2 marks]Describe, with reference to this situation, how the direction of vibration of the water relates to the direction in which the wave moves.
(c)[1 mark]Name another example of a transverse wave (other than water waves).
Question 133
4 marks · Normal
Answer and see the solution →The following diagram shows a wave travelling along a rope.
Wave on a rope (a)[2 marks]Label the wavelength and amplitude on the diagram.
(b)[1 mark]Which point on this wave shows the maximum positive displacement from the equilibrium position? State its letter.
(c)[1 mark]What is the name of this maximum point?
Question 134
4 marks · Normal
Answer and see the solution →A loudspeaker produces a sound wave with a frequency of 450 Hz. Each wave has a time period of 0.0022 seconds.
(a)[1 mark]State the equation relating frequency and time period for a wave.
(b)[2 marks]Using the equation, calculate the frequency expected if the time period is 0.0022 s.
(c)[1 mark]Suggest why the calculated frequency and measured frequency might not match exactly.
Question 135
1 mark · Easy
Answer and see the solution →State the equation that links wave speed (), frequency (), and wavelength ().
Question 136
2 marks · Easy
Answer and see the solution →A light wave has a frequency of 5.0 × 10 Hz and a wavelength of 6.0 × 10 m. Calculate the speed of the wave.
Question 137
1 mark · Easy
Answer and see the solution →State the relationship between frequency () and time period () for a wave.
Question 138
2 marks · Easy
Answer and see the solution →A water wave has a time period of 0.2 s. Calculate its frequency.
Question 139
2 marks · Easy
Answer and see the solution →What happens to the wavelength of a wave if its frequency is halved, but its speed stays the same? Explain your answer.
Question 140
3 marks · Easy
Answer and see the solution →A sound wave travels in air at a speed of 340 m/s.
(a)[2 marks]Calculate the wavelength if the frequency is 850 Hz.
(b)[1 mark]State the unit for wavelength.