Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science Yr 8 Summer Exam Revision > Waves I > Flashcards

Waves I Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

what are waves

A

an oscillation that transfers energy and NOT matter

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

oscillations

A

the movement of particles

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

give 2 examples of energy transfer mechanisms

A

waves and force

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

what do waves transfer

A

energy

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

what don’t waves transfer

A

matter

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

give an example of a mechanical wave

A

longitudinal wave

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

what is the name of the matter needed for mechanical waves to travel through

A

a medium

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

why can’t sound travel through space (3)

A
  • space is a vacuum so it has no matter
  • sound waves are mechanical and need a medium
  • since there is no medium in space for sound waves to travel through, there is no sound in space
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is space

A

a vacuum

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

what is a vacuum

A

a place that has no matter

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

describe a longitudinal wave

A
  • areas of compressions and rarefactions
  • compressions can be represented by lines drawn closely together
  • rarefactions can be represented by lines drawn spread far apart
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

give an example of a longitudinal wave

A

sound waves

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

what are the oscillations like in a longitudinal wave

A

parallel to the direction of propagation

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

what is wave frequency

A

number of complete oscillations per second

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

what is wave amplitude

A

distance between the crest and fixed position

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

complete:

amplitude is the maximum__________.

A

displacement

17
Q

what is wavelength

A

distance from crest to crest or trough to trough

18
Q

what is the unit of measurement for frequency

A

Hertz (Hz)

19
Q

what does it mean if the frequency is 10 Hz

A

there are 10 complete oscillations per second

20
Q

what is the equation linking work done, change in height, force and gravitational field strength

A

work done = change in height x force x gravitational field

21
Q

what is pitch

A

pitch is the sound given off by the wave due to the frequency (Hz per second)

Science Yr 8 Summer Exam Revision (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions