What can happen when sound hits a barrier?

• it can transmit

• it can reflect

• it can be absorbed

• it can amplify

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NGSS.MS-PS4-2

An echo is an example of sound ________________ by a barrier.

• transmitted

• absorbed

• reflected

• amplitude

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NGSS.MS-PS4-2

When sound passes through a material that is known as ______________.

• reflection

• transmission

• absorption

• invisibility

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NGSS.MS-PS4-2

When sound is ________________ by a barrier it cannot be heard.

• absorbed

• transmitted

• reflected

• energized

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NGSS.MS-PS4-2

Sound that bounces off of a barrier is known as ______________.

• transmission

• reflection

• absorption

• bounciness

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NGSS.MS-PS4-2

Sound can travel through solid, liquid and gas.

• True

• False

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NGSS.MS-PS4-2

When sound energy is absorbed the energy changes into what kind of energy?

• heat

• potential

• gravitational

• electric

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NGSS.MS-PS4-2

A rough surface reflects sound better than a smooth surface.

• True

• False

Tags

NGSS.MS-PS4-2

Why is there no sound in space?

• There is no material (medium) for the energy to travel through.

• The molecules in space are too small.

• Sound needs the correct temperature to travel through.

• Sound only travels through solid material.

Sound that has a high frequency has ______ pitch.

• a high

• a low

• the same

• twice the