5.2 Sound Review Homework

Sound is a type of mechanical energy that is transmitted in the form of —

• Waves
• Light
• Heat
• electron

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Which of these makes a sound with the slowest vibration?

• A
• B
• C
• D

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Which of these transmits sound the fastest?

• Water in a pool
• A metal rod
• Air in a balloon
• Empty space

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How is the use of sound waves helpful to this whale?

• It helps the whale locate food.
• It makes the water warmer.
• It makes it easier to obtain oxygen.
• It signals fish to move out of the whale’s path.

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Blowing through a straw will produce a sound. Which straw will make the highest pitch?

• Choice A
• Choice B
• Choice C
• Choice D

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During a thunderstorm, you see the lightning before you hear thunder. This is because —

• light has a greater mass than sound
• sound has longer wavelengths than light
• light travels faster than sound 
• sound and light travel at the same speed

The greater the frequency of a sound wave, the _____

• lower the pitch
• higher the pitch
• softer the sound
• louder the sound

A student used a coiled children's toy to show the class about sound waves.  What did he demonstrate?

• light
• radio
• compression
• x-ray

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What is labeled as #2 on the diagram?

• crest
• amplitude
• wavelength
• trough

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Wavelength is best described as __________

• the distance from one point on a wave to the same point on another wave
• the highest point of a wave
• the lowest point of a wave
• the total number of complete waves in a cycle

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