Waves, Sound, and Physical Optics
Which of the following types of waves requires a medium to travel through?
Electromagnetic waves
Mechanical waves
Radio waves
Light waves
A wave is traveling on a string with a tension of 100 N and a mass per unit length of 0.01 kg/m. What is the speed of the wave?
10 m/s
100 m/s
1000 m/s
10000 m/s
A wave on a string has a speed of 50 m/s and a frequency of 25 Hz. What is the wavelength of the wave?
0.5 m
2 m
1250 m
75 m
What does the amplitude of a wave represent?
The speed of the wave
The frequency of the wave
The maximum displacement from equilibrium
The wavelength of the wave
Sound waves are an example of which type of wave?
Transverse wave
Electromagnetic wave
Longitudinal wave
Light wave
What is the speed of electromagnetic waves in a vacuum?
3.00 \times 10^8 \text{ m/s}
3.00 \times 10^6 \text{ m/s}
3.00 \times 10^4 \text{ m/s}
3.00 \times 10^2 \text{ m/s}
How does increasing the amplitude of a sound wave affect its energy?
Decreases the energy
Increases the energy
Does not affect the energy
Halves the energy

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What is transferred by a wave?
Matter
Energy
Both matter and energy
Neither matter nor energy
Which type of wave can travel through a vacuum?
Sound waves
Mechanical waves
Electromagnetic waves
Water waves
In a transverse wave, the disturbance is oriented in which direction relative to the wave's direction of travel?
Parallel
Perpendicular
At a 45-degree angle
In the opposite direction