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Different wavelengths of light are different colours

Total questions: 12

Worksheet time: 30mins

Name
Class
Date
1.

During REFLECTION:

a)

light bounces off an object

b)

light is transformed into heat inside an object

c)

light passes through an object

d)

light is transformed into heat outside an object

2.

During ABSORPTION:

a)

light passes through an object

b)

light bounces off an object

c)

light is transformed into heat inside an object

d)

light is transformed into heat outside of an object

3.

During TRANSMISSION:

a)

light is transformed into heat inside an object

b)

light bounces off an object

c)

light is transformed into heat outside an object

d)

light passes through an object

4.

What are the 7 colours of the visible spectrum?

a)

red, orange, yellow, green, pink, indigo and violet.

b)

red, orange, yellow, green, black, indigo and violet.

c)

red, orange, yellow, green, white, indigo and violet.

d)

red, orange, yellow, green, blue, indigo and violet.

5.

DISPERSION is:

a)

The saturation of white light into its different colours

b)

The separation of white light into its different colours

c)

The saturation of black light into its different colours

d)

The separation of black light into its different colours

6.

When only two colours are needed to make white light, they are called:

a)

transparent colours of light

b)

supplementary colours of light

c)

complementary colours of light

d)

translucent colours of light

7.

How are rainbows made?

a)

When water droplets in the air produce sunlight

b)

When dust particles in the air bend sunlight

c)

When water droplets in the air bend sunlight

d)

When dust particles in the air produce sunlight

8.

What colour has the shortest wavelength?

a)

blue

b)

violet

c)

red

d)

indigo

9.

White objects:

a)

absorb only half of the colours of the visible spectrum

b)

absorb all the colours of the visible spectrum

c)

reflect only half of the colours of the visible spectrum.

d)

reflect all the colours of the visible spectrum.

10.

Imagine this scenario:


You enter a pitch black room which you were told it only contains a red box, a blue box and a green box.


Your mission is to find the BLUE box.


You can choose one of two coloured light bulbs to light up the room so you can easily spot the blue box.


What are your 2 possible options? (choose 2)

a)

a light bulb which produces WHITE light

b)

a light bulb which produces GREEN light

c)

a light bulb which produces RED light

d)

a light bulb which produces BLUE light

11.

When two of the PRIMARY colours are mixed, they form:

a)

secondary colours of light

b)

elementary colours of light

c)

complementary colours of light

d)

supplementary colours of light

12.

Imagine this scenario:


It is a hot summer's day but you want to play outside.


Which coloured t-shirt should you AVOID WEARING so you do not overheat in the sun?

a)

the pink t-shirt

b)

the white t-shirt

c)

the black t-shirt

d)

the blue t-shirt