Introduction to Sound

When do we hear sound?

• When particles travel

• When particles vibrate

Select all sounds that will have a high volume.

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• 
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Choose the missing words:

_______ vibrations will have soft sounds.

• Big

• Loud

• Soft

• Small

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Through which phase of matter is sound the loudest?

• Gas

• Liquid

• Solid

What unit is used to measure sound volume?

• vibrations

• decibels

• particles

• Newtons

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Which picture does not show how sound can be made louder?

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• 
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True or False?

Loud sounds have low volume and big vibration.

• True

• False

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Which sound will have the lowest decibels?

• Cat meowing

• Thunder

• Lion roaring

• Rocket launching

We can make a sound louder by ______ the vibrations.

• trapping

• traveling

• stopping

• hearing

Tags

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Look at the picture.

Sound travels in a ______

• straight line

• wave

Tags

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