Waves of Sound

Sound is produced when something ______________

• Vibrates
• Moves through empty space

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

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.MS-PS4-1

What is something natural that sound cannot travel through?

• Water

• Air

• Liquids

• outer Space

Tags

NGSS.MS-PS4-2

The term for how loud or soft a sound is:

• pitch
• volume
• sound
• medium

Tags

NGSS.MS-PS4-1

When Mr. Allen yells his name in a cave, the sound reflects off the walls of the cave and travels back to his ears.  What is this called?

• refraction
• amplitude
• pitch
• echo

Tags

NGSS.MS-PS4-2

When someone or something makes a sound in the room, how are the sound waves similar to ripples on a pond? 

• Sound waves are similar to ripples on a pond because they look similar and they both spread outwards. 
• Sound waves are similar to ripples on a pond because they look similar and spread inwards.

Tags

NGSS.MS-PS4-1

What is wavelength?

• How high or low a pitch is.
• How loud a sound is.
• The length of a wave.

A high sound has a ______ wave length.

• long or spread out

• short or squished together

A low sound has a _________ wavelength.

• long or spread out

• short or squished together

_______is back-and-forth movement of something. 

• Vibration
• Sound
• Pitch