Sound And Light Flashcards Preview

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Flashcards in Sound And Light Deck (26):
1

Plane mirror

A plane mirror is a mirror that reflects something perfectly

2

Cornea

the transparent layer forming the front of the eye.

3

Refraction

Refraction is the bending of light waves when it slows down when passing through a different medium

4

Speed of sound

When an object is travelling faster than the speed of sound

5

Specular reflection

When something is reflected from a smooth surface

6

Lens

It is in your eye it focuses light and allows you to see

7

Pitch

How high or low a sound is

8

Audible range

How high or low a human can hear

9

Diffuse scattering

When light reflects of a rough surface and goes in all directions

10

Retina

The image is formed in the back of your eye on your retina

11

Amplitude

How loud a sound wave is

12

Vacuum

A vacuum is an area where there is no medium for the light to travel through.

13

Law of reflection

The angle of incidence and the angle of reflection are equal

14

Convex lens

The lens in each of your eyes is a convex or a converging lens

15

Frequency

How high or low pitched something is

16

Ultrasound

Ultrasound is sound with a frequency above 20,000 hz humans cannot hear ultrasound

17

Incident ray

The direct ray of light that has not been reflected

18

Wave length

How long one light or sound wave is

19

Echo

When sound is reflected of an object

20

Reflected ray

A light ray that has been reflected

21

Transverse waves

A light wave is a transverse wave

22

Refraction

As the light leaves the water the direction it is travelling in changes this is called refraction.

23

Longitudinal waves

Sound waves are longitudinal waves

24

Medium

A medium is a state of matter that sound can travel through

25

Peak/crest/trough

The top or bottom of a wave

26

Speed of light

How fast light travels through a medium