AS Physics U14 Waves Checkpoint Quiz 1

Quiz by Jeffrey Piggott, updated more than 1 year ago
 Created by Jeffrey Piggott over 1 year ago
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9702 Unit 14 Waves Checkpoint Quiz #1.

Resource summary

Question 1

Question
A longitudinal wave travels through a long spring. The spring is shown at one instant. What is the wavelength of the wave?
• A
• B
• C
• D

Question 2

Question
A sound wave has a frequency of 2500 Hz and a speed of 1500 m.s^–1. What is the shortest distance from a point of maximum pressure in the wave to a point of minimum pressure?
• A 0.15 m
• B 0.30 m
• C 0.60 m
• D 1.20 m

Question 3

Question
A sound wave is displayed on the screen of a cathode-ray oscilloscope (c.r.o.) as shown. The time-base of the c.r.o. is set at 2.5 ms.cm^–1. What is the frequency of the sound wave?
• A 50 Hz
• B 100 Hz
• C 200 Hz
• D 400 z

Question 4

Question
The period of an electromagnetic wave is 1.0 ns. What are the frequency and wavelength of the wave?
• A
• B
• C
• D

Question 5

Question
Which statement about progressive longitudinal waves is not correct?
• A The oscillations of the particles are parallel to the direction of travel of the wave energy.
• B They have a series of nodes and antinodes.
• C They need a medium through which to travel.
• D They transfer energy.

Question 6

Question
A bicycle gear wheel is a disc with 50 ‘teeth’ equally spaced around its edge, as shown. The gear wheel is rotated 10 times each second. A springy strip of metal is vibrated by the rotating ‘teeth’. The metal strip produces a sound of frequency that is equal to the frequency of vibration of the strip. The speed of sound in air is 330 m.s^–1. What is the wavelength of the emitted sound?
• 0.66 m
• 1.5 m
• 6.6 m
• 500 m

Question 7

Question
Which row describes the oscillations of two moving particles in a stationary wave that are separated by a distance of half a wavelength?
• A
• B
• C
• D

Question 8

Question
Two wave sources are oscillating in phase. Each source produces a wave of wavelength λ. The two waves from the sources meet at point X with a phase difference of 90°. What is a possible difference in the distances from the two wave sources to point X?
• A λ/8
• B λ/4
• C λ/2
• D λ

Question 9

Question
Which statement about electromagnetic waves in a vacuum is correct?
• A Amplitude is inversely proportional to velocity.
• B Frequency is inversely proportional to wavelength.
• C Intensity is proportional to amplitude.
• D Velocity is proportional to wavelength.

Question 10

Question
A transverse wave travels along a rope. The graph shows the variation of the displacement of the particles in the rope with distance along it at a particular instant. At which distance along the rope do the particles have maximum upwards velocity?
• A 0.5 m
• B 1.0 m
• C 1.5 m
• D 2.0 m

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