Sound

____________ is determined by sound wave's frequency. 

• Compression
• Pitch 

Sound waves travel the FASTEST through _____________.

• gases
• liquids
• solids

Tags

NGSS.MS-PS4-2

If a sound has a high amplitude then it also has a ____________!!!

• fast echo
• slow pitch
• high volume
• low volume

Tags

NGSS.MS-PS4-1

If you want to change the pitch of a sound, you have to change the ___

• frequency
• amplitude
• speed
• volume

Tags

NGSS.HS-PS4-1

This is the unit used to measure the volume of a sound. 

• Decibel
• Medium
• Vibration
• Oscilloscope

Tags

NGSS.MS-PS4-1

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

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.

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

The part of the ear that vibrates first when hearing a sound

• eardrum

• cochlea

• eustachian tube

• ear pinna

When sound waves cause the ear drum to vibrate, these vibrations are immediately passed on to the_________.

• eustachian tube

• ear canal

• cochlea

• ossicles