topic 6 waves Flashcards

1
Q

what are the two types of waves

A

transverse

longitudinal

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

what is a transverse wave

A

a wave for which the oscillations are perpendicular to the direction of energy transfer

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

what is a longitudinal wave

A

a wave for which the oscillations are parallel to the direction of energy transfer

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

2 examples of transverse waves

A

electromagnetic and seismic s waves

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

2 examples of longitudinal waves

A

sound waves and seismic p waves

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

WHAT IS THE WAVES AMPLITUDE

A

the maximum height / displacement of a wave from its original point

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

what is wavelength

A

distance from a point on a wave to the same position on the adjacent of the wave

usually points of a peak or trough to trough

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

what is the frequency of waves

A

the number of waves that pass per second

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

units for frequency

A

Hz, Hertz

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

what does it mean when a frequency is 200Hz

A

200 waves pass per second

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

what is wave speed

A

the speed which the wave moves or at which energy is transferred through a medium

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

what does a wave transfer

A

energy

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

give equation for wave speed

A

frequency x wavelength

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

what word is used when a wave bounces off a surface

A

reflection

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

how do sound waves travel through a solid

A

the particles in the solid vibrate and transfer ke through the material

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

what is the frequency range of human hearing

A

20 hz - 20kHz

17
Q

what are ultrasound waves

A

waves which have a frequency higher than the upper limit of human hearing (20kHz)

18
Q

what natural event causes seismic waves to be produced? what type of waves are produced

A

earthquakes

they produce p waves and s waves

19
Q

difference of p waves and s waves and what they can travel through

A

p waves travel through solids and liquids

s waves only travel through solids not liquids

20
Q

what technique is used to detect object deep in water depth

A

echo sounding

high frequency sound waves are emitted and reflected and detected

tome difference between going down and back up