IMO Practice Test — Energy & Its Forms
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
Energy stored in fuels like coal, wood and petrol is a form of ___ energy.
Chemical
Sound
Light
Wind
Explanation: Fuels store chemical energy released by burning.
Question 2 of 6
hard
In a solar lamp, the energy changes go: sunlight to electricity to…
Sound
Food
Light
Wind
Explanation: A solar lamp turns sunlight into electricity, then into light.
Question 3 of 6
hard
Energy sources that will run out one day, like coal and oil, are called…
Renewable
Non-renewable
Solar
Endless
Explanation: Limited sources that run out are non-renewable.
Question 4 of 6
hard
A cyclist pedalling a dynamo lights a lamp. The change is muscle energy to electricity to…
Rock
Food
Sound
Light
Explanation: A dynamo turns motion into electricity, then light.
Question 5 of 6
hard
Even the energy in coal first came from the Sun, because coal formed from ancient…
Wind
Rocks
Rain
Plants that used sunlight
Explanation: Coal came from plants that long ago captured the Sun's energy.
Question 6 of 6
medium
Energy stored in food, batteries or fuel, ready to be used, is called…
Sound
Light
Stored (potential) energy
Colour
Explanation: Energy waiting to be used is stored energy.