NGSS.4-PS4-1

When Mr. Sinyard yells his name in a cave, the sound reflects off the walls of the cave and travels back to his ears.  What is this called?

• refraction
• amplitude
• pitch
• echo

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NGSS.4-PS4-1

Sound waves travel best through —

• gases
• gases
• solids
• vacuums

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NGSS.4-PS4-1

Which letter(s) represent the trough of the wave?

• A
• B & D
• D
• C & G

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NGSS.4-PS4-1

What is vibration?

• how loud a sound is
• the back and forth movement of matter
• how high or low a sound is
• the loudness or softness of a sound

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NGSS.4-PS4-1

When you hear music, what is your ear actually detecting?

• notes from the speaker
• waves created by vibrations
• electrical currents traveling through the air
• sound atoms coming from the sound

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NGSS.4-PS4-1

What is the longest wavelength on the EMS (electromagnetic spectrum)?

• Radio Waves
• Micro Waves
• Gamma Rays
• X-Rays

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NGSS.4-PS4-1

The highest pitch is made by the _______ instrument.

• biggest
• wooden
• smallest
• shiniest

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NGSS.4-PS4-1

Sound travels in...

• straight lines

• circles

• waves

• none of the above

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NGSS.4-PS4-1

Sound can be affected by:

• pitch

• music

• volume

• touch

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NGSS.4-PS4-1

Sound waves

• don't travel

• travel in all directions

• travel in only one direction

• travel only north

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