Waves and Sound - SS2 Physics Past Questions and Answers - page 3
The relationship between wavelength and frequency of a wave is:
Inversely proportional
Directly proportional
Unrelated
Random
The wave equation relates the speed of a wave, its frequency, and its:
Wavelength
Amplitude
Period
Energy
Which type of wave requires a medium for its propagation?
Electromagnetic wave
Transverse wave
Longitudinal wave
Mechanical wave
The wavelength of a wave is 2 metres and its frequency is 50 Hz. What is the speed of the wave?
The speed of a wave can be calculated using the equation v = f × λ, where v is the speed, f is the frequency, and λ is the wavelength. Plugging in the values, we get v = 50 Hz × 2 m = 100 m/s.
A wave has a frequency of 500 Hz and a speed of 350 m/s. What is its wavelength?
0.7 m
1.4 m
700 m
0.35 m
The wavelength of a wave can be calculated using the equation λ = v / f, where λ is the wavelength, v is the speed, and f is the frequency. Plugging in the values, we get λ = 350 m/s / 500 Hz = 0.7 m.
A wave with a wavelength of 0.1 metres and a speed of 200 m/s is travelling through a medium. What is its frequency?
The frequency of a wave can be calculated using the equation f = v / λ, where f is the frequency, v is the speed, and λ is the wavelength. Plugging in the values, we get f = 200 m/s / 0.1 m = 2000 Hz.
A wave has a frequency of 1000 Hz and a wavelength of 0.02 metres. What is its period?
The period of a wave can be calculated using the equation T = 1 / f, where T is the period and f is the frequency. Plugging in the value, we get T = 1 / 1000 Hz = 0.001 s.
A wave has an amplitude of 5 cm. What is its maximum displacement from the equilibrium position?
The maximum displacement of a wave from the equilibrium position is equal to twice the amplitude. In this case, the maximum displacement is 2 × 5 cm = 10 cm.
When a wave passes from one medium to another and changes speed, what phenomenon occurs?
Reflection
Refraction
Diffraction
Interference
The bending of a wave as it passes from one medium to another is caused by a change in its:
Frequency
Wavelength
Amplitude
Speed