sound (class 8)

What is vibration?

• how loud a sound is

• the quick back and forth movement of matter

• the loudness or softness of a sound

Sound is a form of? 

• energy
• pitch
• volume

Tags

NGSS.MS-PS4-1

Sound is caused by? 

• force
• vibrations
• instruments

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

Tags

NGSS.MS-PS4-2

Sound does not travel in space because

• Space is too far away.
• There is no matter in space.
• Space is the final frontier
• Space has planets.

how high or low a sound is

• frequency
• volume
• vibration
• pitch

Tags

NGSS.HS-PS4-1

Sound waves can travel through a vacuum.

• True

• False

An ________ is a reflected sound.

• Vibration
• Echo
• Pitch
• Volume

Tags

NGSS.MS-PS4-2

The Pitch of The sound depends on the __________ of the vibrating body.

• Noise

• Frequency

• Amplitude

• The medium of Propagation

An object is vibrating with a frequency of 15Hz. Which of the following is true?

• It does not produce sound.

• It produces sound which we can hear if we strain our ears.

• It produces sound which we cannot hear

• It produces sound which we can hear.