Light and Sound

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

Tags

NGSS.MS-PS4-2

Sound is caused by? 

• force
• vibrations
• instruments

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NGSS.4-PS3-2

NGSS.4-PS4-1

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

NGSS.MS-PS4-1

Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch

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NGSS.1-PS4-1

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.
• Sound does not travel faster through a solid than a gas.
• Solid molecules are packed tightly.
• Gas molecules move slowly.

Tags

NGSS.MS-PS4-2

What is volume?

• how high or low a sound is
• the loudness or softness of a sound
• the number of vibrations per second
• vibrations

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NGSS.4-PS4-1

A sound that bounces off a surface is called an ________.

• loud sound
• echo
• repeat
• quiet sound

Tags

NGSS.MS-PS4-2

What does reflection mean?

• It is when the light changes the material and the direction of it changes as well.

• It is when the material is rebounding the light.

Tags

NGSS.MS-PS4-2

Another name for light bending is ....

• Reflaction
• Absorbing
• Refraction
• mirror

Tags

NGSS.MS-PS4-2

Opaque means...

• No light passes through it
• All light passes through it
• Some light passes through it

Tags

NGSS.MS-PS4-2