Sound Review

A kind of energy that travels in waves that you hear

• Sound

• Crest

• Light

• Pitch

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The number of crests or troughs that pass by over a certain amount of time

• Frequency

• sound

• amplitude

• volume

The distance between one crest or trough to the next

• volume

• acoustics

• sound

• wavelength

How high or low a sound is

• pitch

• volume

• sound

• acoustics

You and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?

• sound waves reflecting off smooth, flat surfaces throughout the house
• sound waves moving around the large rooms
• sound waves moving slowly through air
• sound waves refracting around corners in the empty rooms

Tags

NGSS.MS-PS4-2

If distance C on the diagram increased, what would happen to the pitch? 

• The pitch would be louder. 
• The pitch would be softer. 
• The pitch would be higher. 
• The pitch would be lower. 

Tags

NGSS.MS-PS4-1

If the distance represented by the letter A were increased, how would it change the way the sound was heard?

• The sound would be higher. 
• The sound would be lower. 
• The sound would be softer. 
• The sound would be louder. 

Tags

NGSS.MS-PS4-1

______ is how high or low a sound is; depends on the frequency.

• pitch
• frequency
• sound
• medium

A soft, low pitch sound would have which of the following....

• low frequency 
  high amplitude 
• high frequency 
  high amplitude 
• low frequency 
  low wavelength  
• low frequency
  low amplitude 

Tags

NGSS.MS-PS4-1

A reflected sound wave is know as a/an ___________.

• frequency
• pitch
• echo
• rarefaction

Tags

NGSS.MS-PS4-2