All sounds are caused by:

• Hot objects

• Cold objects

• Vibrating objects

• Heavy objects

What is a vibration?

• A gradually descending motion

• A spinning motion

• A back and forth motion

• A jumping motion

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A heavy object will vibrate:

• Quickly

• Slowly

A lightweight object will vibrate:

• Quickly

• Slowly

Tags

NGSS.MS-PS4-1

A quickly vibrating object will produce this type of sound:

• Loud

• High Pitched

• Soft

• Low Pitched

Tags

NGSS.MS-PS4-1

A slowly vibrating object will produce this type of sound:

• Loud

• High pitched

• Soft

• Low pitched

Tags

NGSS.MS-PS4-1

Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch

The highest pitch is made by the _______ instrument.

• biggest
• wooden
• smallest
• shiniest

What is volume?

• the loudness or softness of a sound
• vibrations
• the number of vibrations per second

Low pitch sounds are caused by a ______ vibration

• fast 
• slow
• hard
• soft