Topic 6 Sound Waves Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What sound waves caused by

A

Vibrating objects that are passed through the surrounding medium as a series of compressions and rarefactions (type of longitudinal wave)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What does sound travel faster in

A

Faster in solids than liquids and faster in liquids than gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How does that sound waves travel through a solid

A

By causing the particles in solid to vibrate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Why can’t sound travel in space

A

Because it’s mostly vacuum and there are no particles move on vibrate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does sound waves that reach your eardrum do

A

Cause ear drum to vibrate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the vibrations in your eardrum pass on to

A

Tiny bones in your ear called ossicles through the semicircular canals and to the cochlea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does the cochlea do to vibrations

A

Turns them into electrical signals which gets sent to your brain and allow you to sense/hear the sound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the sound range for humans

A

20 Hz to 20 kilohertz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Microphones can pick up sound waves outside of human hearing range but what would happen if you try to listen to them

A

You probably wouldn’t be able to hear them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is human hearing limited by

A

The size and shape of your eardrum as well as the structure of all the parts within the air that vibrate to transfer the energy from the soundwave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How to microphones work

A

Sound waves cause a diaphragm to vibrate and this movement is transferred into electrical signal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What will sound waves be reflected by

A

Hard flat surfaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are echoes

A

Just reflected sound waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How does sound waves refract as they enter a different media

A

As they enter a denser material they speed up
this is because when a wave travels into a different medium its wavelength changes but its frequency remains the same so its speed must also change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly