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*Sound and light KS3 #ForestHorsham

Total questions: 37

Worksheet time: 26mins

Name
Class
Date
1.

Light travels... (select 2 answers)

a)

Around corners

b)

In straight lines

c)

Faster in glass than in air

d)

Faster than sound

2.

What are the mistakes in the image? Select 2 answers.

a)

The arrow on the light ray is going towards the person's eye

b)

The arrow on the light ray is going away from the person's eye

c)

The arrow on the light ray is going towards the light source

d)

The arrow on the light ray is going away from the light source

3.

Which is true about reflection?

a)

The angle of incidence is bigger than the angle of reflection.

b)

The angle of incidence is smaller than the angle of reflection

c)

The angle of incidence = the angle of reflection

4.

When drawing ray diagrams, you need to...

a)

Use a ruler

b)

Use a pencil

c)

Have no gaps in the light rays

d)

Put an arrow to show the direction the light ray is travelling

5.

What is happening to the light ray at the surface of the water to mean the fish appears higher up than it is?

a)

The light ray is reflecting

b)

The light ray is refracting

c)

The light ray is scattering

d)

The light ray is absorbed

6.

The picture shows 4 sound waves on an oscilloscope. Which has the highest pitch?

a)

A

b)

B

c)

C

d)

D

7.

The picture shows 4 sound waves on an oscilloscope. What can you say about A?

a)

It is a very low pitched sound

b)

It is a very high pitched sound

c)

It is a very quiet sound

d)

It is a very loud sound

8.

The picture shows 4 sound waves on an oscilloscope. Which 2 have the smallest amplitude?

a)

A

b)

B

c)

C

d)

D

9.

The picture shows 4 sound waves on an oscilloscope. What is the wavelength of B?

a)

4 boxes

b)

2 boxes

c)

6 boxes

d)

8 boxes

10.

Which statement is true of sound waves. Select 2 answers.

a)

They are made by objects vibrating

b)

They are detected because they make our ear drum vibrate

c)

They are transverse waves

d)

They travel faster in air than in water.

11.

What can you see here? Select 2 answers.

a)

LIght is being refracted through a prism

b)

Light is being reflected by the prism

c)

A spectrum is formed

d)

A rainbow is formed

12.

Which statement is true for refraction of light? Choose 2 answers.

a)

When it enters a denser medium (e.g. from air to glass), it changes direction towards the normal.

b)

When it enters a denser medium (e.g. from air to glass), it changes direction away from the normal.

c)

When it enters a less dense medium (e.g. from glass to air), it changes direction towards the normal.

d)

When it enters a less dense medium (e.g. from glass to air), it changes direction away from the normal.

13.

The picture shows 4 sound waves on an oscilloscope. What is the amplitude of B?

a)

4 boxes

b)

2 boxes

c)

6 boxes

d)

8 boxes

14.

If I shine white light at a red filter, what will I see the other side of the filter?

a)

White light

b)

No light

c)

Red light

d)

Yellow light

15.

What type of wave is shown by the diagram?

a)

Transverse

b)

Longitudinal

16.

Which is true about transverse waves?

a)

Sound waves are transverse

b)

They have areas of rarefaction and compression

c)

Vibrations are across the direction of travel

17.
Light travels in a straight line
a)
True
b)
False
18.
Which explains why the fork looks different under water?
a)
light can't pass through the glass
b)
the wavelength of light lengthens
c)
the amount of light increases when going through water
d)
light is refracted at an angle
19.
Why do we see objects as white?
a)
They absorb all light
b)
They reflect all light
c)
They absorb some light and reflect some light
20.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
21.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
22.
Luminous means...
a)
Gives out its own light
b)
Reflects light from other things
23.
The color you see is the color that is ___.
a)
reflected
b)
absorbed
24.
White light is made up of _________________ colors.
a)
10
b)
3
c)
7
d)
70
25.
If light strikes a mirror at a 50⁰ angle, what angle will it come off of the mirror?
a)
50⁰
b)
70⁰
c)
45⁰
d)
30⁰
26.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
27.
Which color reflects all light?
a)
White
b)
Black
c)
Orange 
d)
Green
28.

Which type of wave does light travel in?

a)

Ocean wave

b)

Compression wave

c)

Transverse waves

d)

Radio wave

29.
Material that allows light to pass through allowing you to see "clearly" to the other side
a)
opaque
b)
translucent
c)
transparent
30.
 Refraction can separate white light into
a)
a. infrared waves.
b)
b. different colors.
c)
c. ultraviolet light.
d)
d. longer wavelengths.
31.
 Refraction can separate white light into
a)
a. infrared waves.
b)
b. different colors.
c)
c. ultraviolet light.
d)
d. longer wavelengths.
32.

In the diagram, which letter represents the angle of incidence?

a)

A

b)

B

c)

C

d)

D

33.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
34.
a)
Reflection
b)
Refraction
35.
Which color travels the quickest and has the shortest wavelength?
a)
Red
b)
Violet
36.
The distance between two crests or two troughs is the...
a)
Crest/Peak
b)
Trough
c)
Wavelength
37.
Which color travels the slowest and has the longest wavelength?
a)
Violet
b)
Red