Waves Flashcards

1
Q

What do waves transfer?

A

Energy and information

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

How do the particles in a wave move?

A

They oscillate to and fro about a point

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

What are the two different types of waves

A

Transverse and longitudinal

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

What is a transverse wave

A

A wave that oscillates perpendicular to the direction of energy transfer

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

Give an example of a transverse wave

A

Water wave

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

What is a longitudinal wave

A

Waves that oscillate parallel to the direction of energy transfer

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

Give an example of a longitudinal wave

A

Sound wave

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

What is a longitudinal wave made up of

A

Compressions and rarefactions

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

What is a mechanical wave

A

A wave that needs a medium to travel through

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

What is an electromagnetic wave

A

A wave that can travel through a vacuum

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

What type of wave are all electromagnetic waves

A

Transverse waves!!

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

What is the amplitude

A

The distance from the midpoint to the crest or trough of the wave

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

The greater The amplitude of a wave the more what?

A

The more energy it carries

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

What is the wavelength

A

Is the distance from one crest to the next crest.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the frequency of a wave

A

Is the number of wave crests that pass a point in one second.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the period of a wave

A

Is the time it takes for one wavelength to pass a point

17
Q

What is the wavelength of a longitudinal wave

A

From one compression to the nest compression

18
Q

What are incident waves

A

Waves travelling towards a barrier or a boundary

19
Q

What happens to a wave that hits a straight barrier

A

It reflects at the same angle to the barrier as the incident wave

20
Q

What is refraction

A

When a wave crosses a boundary between substances it changes speed and wavelength unless it hits it at 90 degrees