Online Test — Energy & Its Forms
10 Questions • 12 min • Chapter MCQ
12:00
Question 1 of 10
medium
Most fuels like coal and petrol will one day…
Multiply
Grow back fast
Last forever
Run out
Explanation: Coal and petrol are limited and will run out.
Question 2 of 10
easy
The energy that lets us see is…
Sound energy
Light energy
Heat energy
Wind
Explanation: Light energy lets us see.
Question 3 of 10
hard
Why is solar energy called a clean source of energy?
It is dark
It is heavy
It does not pollute the air
It makes smoke
Explanation: Solar energy is clean — it makes no smoke or pollution.
Question 4 of 10
easy
A radio changes electrical energy into…
Rocks
Food
Sound energy
Light only
Explanation: A radio makes sound from electrical energy.
Question 5 of 10
easy
We should switch off lights and fans when…
Never
Always on
It is dark only
Not in use
Explanation: Turning off unused lights saves energy.
Question 6 of 10
easy
Plants use the Sun's energy to make their…
Sound
Roots only
Colour
Food
Explanation: Plants use the Sun's energy to make food.
Question 7 of 10
easy
A fan changes electrical energy into energy of…
Food
Motion (and wind)
Colour
Taste
Explanation: A fan turns electrical energy into moving air.
Question 8 of 10
hard
A still, stretched rubber band holds stored energy ready to…
Disappear
Be released when let go
Turn to water
Make colour
Explanation: A stretched band stores energy it releases when freed.
Question 9 of 10
easy
The energy we hear is…
Heat energy
Light energy
Sound energy
Food
Explanation: Sound energy is what we hear.
Question 10 of 10
easy
The ability to do work or make things happen is called…
Energy
Colour
Weight
Sound only
Explanation: Energy is the ability to do work.