How are sound waves of lower pitches different from sound waves of higher pitches?

• They are longer
• They are shorter
• They are closer together
• They are farther apart. 

A piano tuner will tighten the strings of a piano so that the pitch will be 

• louder
• softer
• lower
• higher

A guitar can change its pitch. What do you do to the strings to make a higher pitch? 

• loosen the strings
• tighten the strings
• pluck the strings harder
• pluck the strings softer

Sound is a kind of energy made by

• heat
• vibrations
• cold

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Low pitch sound wave always has

• a longer wavelength 
• a shorter wavelength
• small amplitude
• a high volume

Sound travels faster through

• solids
• liquids
• gas

Tags

NGSS.MS-PS4-2

How do we observe sound?

• tasting 
• smelling
• hearing
• seeing

Tags

NGSS.4-LS1-2

Which of the following best shows how sound waves travel?

• a branch on a tree moving
• a car speeding down the road
• a baseball hit by a bat
• a pebble dropped in a bowl of water

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The high or low of a sound.

• vibration
• frequency
• pitch
• amplitude

Number of vibrations in an amount of time

• frequency
• vibration
• volume
• pitch