Zech's Sound/Energy 2/18/19

Question 1

Sound _________ travel through a vacuum. When you go to space there’s no sound

Answer 1

Sound cannot travel through a vacuum. When you go to space there’s no sound.

Question 2

All sounds are produced by __________ or back and forth movements

Answer 2

All sounds are produced by vibrations or back and forth movements

Question 3

______ is the “highness” or “lowness” of a sound.

Answer 3

Pitch is the “highness” or “lowness” of a sound.

Question 4

The lower the frequency (rate of vibration) of a sound wave, the _______ of a sound.

Answer 4

The lower the frequency (rate of vibration) of a sound wave, the lower the pitch of a sound.

Question 5

Sound waves require a ____________ through which to travel.

Answer 5

Sound waves require a medium through which to travel.

Question 6

_____ travels faster than _____. This is why we see lightning before the thunder.

Answer 6

Light** travels faster than **Sound. This is why we see lightning before the thunder.​

Question 7

A sound wave that bounces back to its source is called an _______.

Answer 7

A sound wave that bounces back to its source is called an

echo.

Question 8

Smooth hard surfaces _______ sound.

Answer 8

Smooth hard surface reflect sound.

Question 9

_____ material ( strings, rubber bands, etc) produce a ______ that thinner materials because the waves vibrate at a slower frequency.

Answer 9

Thicker material ( strings, rubber bands, etc) produce a lower pitch than thinner materials because the waves vibrate at a slower frequency.

Question 10

The longer the tubing of a brass instrument, the ____ the pitch.

Answer 10

The longer the tubing of a brass instrument, the lower the pitch.

Question 11

The _____ at which sound moves determine the ______.

Answer 11

The frequency at which sound moves determine the pitch.

Question 12

The shorter the tubing of a brass instrument, the ____ the pitch.

Answer 12

The shorter the tubing of a brass instrument, the higher the pitch.

Question 13

Something must _________produce a vibration before it can produce a sound.

Answer 13

Something must first*** produce a ***vibration before it can produce a sound.

Question 14

Sound is a form of________________ because sound moves as Waves

Answer 14

Sound is a form of Kinetic Energy** because sound moves as **Waves

Question 15

Sound waves can be ________ _or ________

Answer 15

Sound waves can be reflected or absorbed

Question 16

Sound waves travel __________________

Answer 16

Sound waves travel outward in all directions

Question 17

Soft Surfaces _____ sound.

Answer 17

Soft Surfaces absorb sound.

Question 18

The higher the frequency (rate of vibration) of a sound wave, the _______ of a sound.

Answer 18

The higher the frequency (rate of vibration) of a sound wave, the higher the pitch of a sound.

Question 19

Something must first produce a _________ before it can produce a sound.

Answer 19

Something must first produce a vibration before it can produce a sound.

Question 20

Pitch can be changed by ______ or ______ the frequency of a sound.

Answer 20

Pitch can be changed by increasing or decreasing the frequency of a sound.

Question 21

Sound is a form of Kinetic Energy because sound moves as ____________\_

Answer 21

Sound is a form of Kinetic Energy because sound moves as Waves