Sound and Waves

Sound travels FASTEST through which of these materials?

• Air

• Empty space

• Metal

• Water

Sound is caused by? 

• force
• vibrations
• instruments

Tags

NGSS.4-PS3-2

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

Tags

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

Sound is a form of? 

• energy
• pitch
• volume

Tags

NGSS.4-PS3-2

NGSS.4-PS4-1

What describes how high or low a sound is?

• amplitude

• compression

• speed of sound

• pitch

A longer string makes a _______ pitch than a short string.

• louder
• softer
• higher
• lower

Tags

NGSS.4-PS4-1

The highest pitch is made by the _______ instrument.

• biggest

• wooden

• smallest

• shiniest

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

An ________ is a reflected sound.

• Vibration
• Echo
• Pitch
• Volume

Tags

NGSS.MS-PS4-2