Exam Review: Waves

What is the formula for calculating wave speed?

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Which of the following is a type of mechanical wave?

• Radio wave

• Sound wave

• Gamma ray

• X-ray

What property is common to all electromagnetic waves?

• They require a medium to travel through.

• They travel at the speed of light in a vacuum.

• They are longitudinal waves.

• They have the same frequency.

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Calculate the wave speed if the frequency is 5 Hz and the wavelength is 3 meters.

• 8 m/s

• 15 m/s

• 1.5 m/s

• 10 m/s

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Which of the following best describes a transverse wave?

• Particles of the medium move parallel to the direction of wave travel.

• Particles of the medium move perpendicular to the direction of wave travel.

• Particles of the medium do not move.

• Particles of the medium move in a circular motion.

What happens to a wave when it is reflected?

• It changes its speed.

• It changes its frequency.

• It bounces back into the original medium.

• It is absorbed by the medium.

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Which of the following is an example of wave refraction?

• A wave bouncing off a wall.

• A wave bending as it enters a new medium.

• Two waves meeting and forming a larger wave.

• A wave spreading out after passing through a narrow opening.

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Describe the interference pattern that occurs when two waves meet in phase.

• Destructive interference, resulting in a smaller wave.

• Constructive interference, resulting in a larger wave.

• No interference, the waves pass through each other unchanged.

• The waves cancel each other out completely.

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What is the primary difference between longitudinal and transverse waves?

• Longitudinal waves require a medium, while transverse waves do not.

• Longitudinal waves have particles that move parallel to the wave direction, while transverse waves have particles that move perpendicular.

• Longitudinal waves are faster than transverse waves.

• Longitudinal waves are electromagnetic, while transverse waves are mechanical.

If a wave has a frequency of 10 Hz and a speed of 30 m/s, what is its wavelength?

• 3 m

• 0.3 m

• 300 m

• 30 m

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