Why Are Some Sounds High and Some Sounds Low?

What does sound have in common with ripples in a pond?

• They both make noise.
• Sound moves through the air just like ripples move through water. 
• They can both be seen.

Tags

NGSS.MS-PS4-1

If a vibration goes back and forth rapidly (fast), what kind of sound waves does it make in the air: short waves or long waves?

• A fast vibration makes long waves.
• A fast vibration doesn't make any waves.
• A fast vibration makes short waves.

Tags

NGSS.HS-PS4-1

Why do we hear echoes?

• Sound vibrations bounce off of an object and return to the person who spoke.
• There's a little man that follows us around and repeats everything we say.
• Sound vibrations hit an object.

Tags

NGSS.MS-PS4-2

Is this the sound of a flute ( a high-pitched sound) or a tuba (a low pitched sound)?

• Flute
• Tuba

Tags

NGSS.MS-PS4-1

Is this the sound of a flute ( a high-pitched sound) or a tuba (a low pitched sound)?

• Flute
• Tuba

Tags

NGSS.MS-PS4-1

How loud a sound is, is called 

• Pitch
• Volume
• Vibrations

How high or low a sound is, is called

• Pitch
• Sound
• Volume

Tags

NGSS.4-PS4-1

The higher pitched sounds make the vibration move _________________.

• slowly
• quickly

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound vibrations in air spread _________________ as ___________________ or __________________.

• inward; ripples; vibrations
• outward; ripples; vibrations
• outward, ripples; waves

Tags

NGSS.MS-PS4-1

Sound is a ____________.

• bother
• wave
• pitch

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2