Light And Sound

Question 1

Refraction

Answer 1

The bending of light rays when they slow down while passing through a different medium.

Question 2

Plane mirror

Answer 2

A mirror that has a flat base and gives a perfect reflection.

Question 3

Cornea

Answer 3

The lens covering the inside of your eye so that you can’t put your finger through it.

Question 4

Oscillation

Answer 4

When a transverse wave goes in a curved line

Question 5

Speed of sound

Answer 5

This can vary with each medium although it is 330 m/s through air.

Question 6

Specular reflection

Answer 6

When all the light is directed in the same direction off a surface.

Question 7

Lens

Answer 7

You can have lots of different lens’s depending on what your eyesight is like but if you are long sighted you have concave lens but if your shortsighted you have a convex lens.

Question 8

Pitch

Answer 8

When a sound is made it can be a high pitch or a low pitch.

Question 9

Audible range

Answer 9

The human ears audible rage is 20 herts to 200 herts

Question 10

Diffuse scattering

Answer 10

This is when a light doesn’t go straight when it gets reflected but it goes all over the place like when you look at yourself n the back of your spoon.

Question 11

Retina

Answer 11

This is the back part of your eye where what you can see is formed.

Question 12

Amplitude

Answer 12

The distance from the middle of the wave to the top of the wave.

Question 13

Vacuum

Answer 13

This sucks air out of something.

Question 14

Convex lens

Answer 14

This is a lens that can make you long sighted or fix your eyes if your short sighted.

Question 15

Frequency

Answer 15

This amount of times you get a wave in a certain period of time.

Question 16

Ultrasound

Answer 16

The amounts of herts a animal can hear.

Question 17

Incident ray

Answer 17

The ray of light before it has been reflected

Question 18

Concave

Answer 18

This is a short sighted lens

Question 19

Wavelength

Answer 19

This is the length of a wave

Question 20

Echo

Answer 20

This is when a sound is reflected

Question 21

Reflected ray

Answer 21

This is a light ray that has been reflected.

Question 22

Transverse wave

Answer 22

This is a light ray

Question 23

Reverberation

Answer 23

This is when sound bounce off a wall and causes an echo

Question 24

Refraction

Answer 24

When you something in a liquid that is in a different place to where it actually is.

Question 25

Spectrum

Answer 25

The colour arrangement when you see refracted colours e.g a rainbow

Question 26

Longitudinal wave

Answer 26

This is a sound wave