Sound

Question 0

What happens to the hairs in the Cochlea if they are damaged by loud noise?

Answer 0

The hair cells are bent, broken, and in some cases, totally sheared off.

Question 1

What is measured in Hz?

Answer 1

Frequency

Question 2

Does sound travel faster or slower through a solid or air?

Answer 2

Sound travels faster through a solid > because it is more dense

Question 3

What is noise pollution?

Answer 3

An unwanted sound that intrudes our lives

Question 4

How do you calculate speed of sound?

Answer 4

Distance traveled (meters) divided by > time taken (seconds)

Question 5

What does density mean?

Answer 5

How compact a set of particles are

Question 6

What does dissipate mean?

Answer 6

When something becomes dispersed

Question 7

What does pitch mean?

Answer 7

A quality of a sound governed by rate of vibrations

Question 8

What is amplitude?

Answer 8

The maximum event of vibration or oscillation

Question 9

What does frequency mean?

Answer 9

The rate at which something occurs over a particular period

Question 10

What does pulse mean?

Answer 10

A single vibration or burst

Question 11

What does timbre mean?

Answer 11

the character or quality of a musical sound or voice as distinct from its pitch and intensity.

Question 12

What does vibration mean?

Answer 12

A powerful shaking

Question 13

What does tone mean?

Answer 13

A musical or vocal sound

Question 14

What does wave length mean?

Answer 14

The distance between points in a sound wave

Question 15

What does hertz mean?

Answer 15

The standard measure of the frequency of oscillations

Question 16

What happens when an object vibrates?

Answer 16

It makes a sound

Question 17

How do fisherman locate shoals of fish?

Answer 17

They use eco-sounding

Question 18

In a thunderstorm do you see light or sound first?

Answer 18

You see light get first because light travels faster than sound

Question 19

Where does convection happen?

Answer 19

A gas and a liquid

Question 20

What is the human hearing range?

Answer 20

20Hz to 20,000Hz

Question 21

What is amplitude?

Answer 21

It is a measure of how loud a sound is - how much energy the wave carries- a big amplitude means a loud sound

Question 22

What do the waves look like for a quiet sound on a oscilloscope?

Answer 22

The waves will have a short height

Question 23

What do the waves look like for a loud sound on a oscilloscope?

Answer 23

The waves will have a tall height

Question 24

What do the waves look like for a low pitch on a oscilloscope?

Answer 24

There would be long wave length- few wave per second

Question 25

What do the waves look like for a high pitch on a oscilloscope?

Answer 25

There would be short wave length- many waves per second

Question 26

What special quality do some animals have with their hearing?

Answer 26

Some animals have a much wider hearing range- animals such as dogs dolphins and bats ect

Question 27

How many hertz is one wave per second?

Answer 27

One hertz-Hz

Question 28

What is the symbol for hertz?

Answer 28

Hz

Question 29

What is meant by the audible range?

Answer 29

When we hear a range of sounds from low pitch to high pitch

Question 30

What is noise?

Answer 30

Noise is an unwanted sound