Brainscape's Knowledge GenomeTM

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


See full index

Year 9 Flash Cards > Science - Light and Sound > Flashcards

Science - Light and Sound Flashcards

1
Q

What is light?

A

A form of electromagnetic radiation

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

What are some forms of light?

A

Lightning, light bulbs, fire

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

What is the law of reflection

A

i - r (angle of incidence = angle of refraction)

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

What does ROYGBIV stand for?

A

Red
Orange
Yellow
Green
Blue
Indigo
Violet

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

What colour is light?

A

White

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

What are the primary colours?

A

Red, blue, green

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

What are the secondary colours?

A

Yellow, cyan, magenta

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

What is a concave mirror?

A

A concave mirror is a curved inward reflective surface

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

What is a convex mirror?

A

A convex mirror is where the reflective surface

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

What is internal refraction?

A

When light enters a object and bounces with a dense medium and critical angles.\

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

What speed does light travel at?

A

300,000,000m/s

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

What speed does sound travel at?

A

330m/s

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

What are some examples of energy?

A

Photons, waves

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

What are some parts of the eye?

A

Pupil
Iris
Optic Nerve
Retina
Vitreous humor
diaphragm
cornea

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

What are some parts of the camera similar to the eye?

A

iris = diaphragm (camera)
cornea = lens
pupil = aperture
retina = focusing ring
eyelid = shutter

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

Is sound or light faster?

A

Light

17
Q

What are some parts of the ear?

A

outer ear
cochlea
ear bones (3)
auditory nerve
ear canal

18
Q

What is volume?

A

Volume is how loud the sound is

19
Q

What is pitch?

A

Pitch is how low or high you pitch your voice and how long your voice sounds

20
Q

What is sound?

A

Sound is a mixture of vibrations, wavelengths and frequencies.

21
Q

What is a medium?

A

Medium is the distance between two waves

22
Q

What is mechanical energy?

A

Mechanical energy is the energy of motion

23
Q

Can mechanical energy travel through a vaccum?

A

No

24
Q

Does mechanical energy have to travel through a medium?

A

Yes

25
Q

What is a longitudinal wave?

A

Longitudinal waves are waves of sound to your ear

26
Q

What is a transverse wave?

A

Transverse waves are waves of light to your eyes

Year 9 Flash Cards (18 decks)

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