Sound and Echoes

When an object moves backwards and forwards very quickly, it ________

• Shakes

• Vibrates

• Moves

Tags

NGSS.MS-PS4-1

To make an object vibrate, we need to hit it with _____

When we hit an object with more force, it ________ more

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Larger vibrations create ______ sounds

• Louder

• Quieter

• the same

Tags

NGSS.MS-PS4-1

A bird can make ____ _____ sounds

• High-pitch

• Low-pitch

A bear can make _________ sounds

• High-pitch

• Low-pitch

Sound travels as a ____

• Stream

• Motion

• Wave

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Air is made of tiny __________

• Pieces

• Particles

• Parts

When an object vibrates, it makes air particles _______

Tags

NGSS.MS-PS4-1

The speed of sound in air is ______

• 3.43m/s

• 34.3m/s

• 343m/s

Tags

NGSS.MS-PS4-1