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Worksheets

Year 8 Light

Total questions: 21

Worksheet time: 16mins

Name
Class
Date
1.

Which term is used to describe height of a wave?

a)

amplitude

b)

wavelength

c)

peak

d)

trough

2.

True or false:


Wavelength can be described as the distance between two peaks/crests.

a)

true

b)

false

3.

Which term describes the number of waves that pass a certain point each second?

a)

amplitude

b)

wavelength

c)

frequency

4.

Complete:


The ___ of incidence equals the angle of ___.

a)

frequency, reflection

b)

reflection, incidence

c)

angle, reflection

d)

angle, incidence

5.

Which term is given to the change of direction of light rays when they passes into a more dense or less dense medium [such as a solid, liquid or gas]?

a)

reflection

b)

refraction

c)

dispersion

6.

True or false:


An example of a luminous object is the moon.

a)

true

b)

false

7.

True or false:


Refraction of white light splits it into its separate colours.

a)

true

b)

false

8.

True or false:


Light can travel through a vacuum.

a)

true

b)

false

9.

Does light travel faster or slower in glass than air?

a)

faster

b)

slower

10.

When white light is shone at a blue filter, only blue light passes through it because all of the other colours are ___.

a)

reflected

b)

refracted

c)

absorbed

11.

Reflection is to bouncing as refraction is to:

a)

bending.

b)

breaking.

c)

dissipating.

d)

halting.

12.

In this diagram, which is the angle of incidence?

a)

Angle A

b)

Angle B

c)

Angle C

d)

Angle D

13.
What property of light makes this pencil appear to be bent or broken?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
14.
Which picture best shows the law of reflection?
a)
A
b)
B
c)
C
d)
D
15.

A material that allows light to pass through it.

a)

opaque

b)

translucent

c)

transparent

d)

prism

16.

A material that DOES NOT allow light to pass through it.

a)

opaque

b)

translucent

c)

transparent

d)

prism

17.
What do we call this tool that separates white light into the colors of the Visible Spectrum?
a)
tuning fork
b)
prism
c)
microscope
d)
graduated cylinder
18.
Curve in
a)
Converse
b)
Convex
c)
Convection
d)
Concave
19.
Band of color in a rainbow, or from a light passing through a prism.
a)
Spectrum
b)
Space
c)
Prism
d)
Refraction
20.
Which color absorbs ALL colors?
a)
yellow
b)
white
c)
black
d)
red
21.

If a black and white car were parked next to each other on a sunny day. Compare the temperatures of the two cars.

a)

The black car would be cooler.

b)

The white car would be hotter.

c)

The black car would be hotter.

d)

They would be the same