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Unit 3 - Light and Energy 4th grade

Total questions: 24

Worksheet time: 24mins

Name
Class
Date
1.

Light is a form of...

a)

fire

b)

energy

c)

power

d)

superpower

2.

Light travels...

a)

Fast

b)

Slow

3.

Light travels...

a)

in one direction

b)

in all directions

4.

Light travels...

a)

in a straight line

b)

in curves

5.

Which object is transparent?

a)

The car

b)

The window

c)

The sunglasses

6.

Which object is opaque?

a)

The car

b)

The window

c)

The sunglasses

7.

Which object is translucent?

a)

The car

b)

The window

c)

The sunglasses

8.

The mirror...

a)

Refracts light

b)

Reflects light

9.

What happens in this case?

a)

Refraction of light

b)

Reflexion of light

10.

Which colour is reflected in the book?

a)

Indigo

b)

Red

c)

Blue

d)

Green

11.

We take energy from...

a)

nature

b)

people

12.

Renewable energy means...

a)

It WILL finish and it is LIMITED

b)

It WON'T finish and it is UNLIMITED

13.

Non-renewable energy means...

a)

It WILL finish and it is LIMITED

b)

It WON'T finish and it is UNLIMITED

14.

Sunlight is...

a)

renewable

b)

non-renewable

15.

Wind is...

a)

renewable

b)

non-renewable

16.

Petroleum is...

a)

renewable

b)

non-renewable

17.

Coal is...

a)

renewable

b)

non-renewable

18.

Hydropower is...

a)

renewable

b)

non-renewable

19.

Natural gas is...

a)

renewable

b)

non-renewable

20.

Windmils transform...

a)

Wind energy to electrical energy

b)

Electrical energy to mechanical energy

21.

Which energy transformation takes place in solar panels?

a)

Light energy to mechanical energy

b)

Light energy to electrical energy

22.

In a nuclear power plant the energy transformation is...

a)

Mechanical energy to electrical energy

b)

Nuclear energy to electrical energy

23.

Which energy transformation takes place in a thermal power plant?

a)

Thermal energy to electrical energy

b)

Nuclear energy to electrical energy

24.

Wood burning power plants energy transformation is...

a)

Thermal energy to electrical energy

b)

Light energy to electrical energy