Renewable Energy
Which is a renewable energy source?
A. Coal
B. Solar
C. Oil
D. Natural gas
B. Solar
Which is non-renewable?
A. Wind
B. Solar
C. Coal
D. Hydro
C. Coal
Which energy source uses sunlight?
A. Solar
B. Coal
C. Natural gas
D. Nuclear
A. Solar
One advantage of solar energy is:
A. It releases lots of CO₂
B. It is renewable
C. It only works underground
D. It uses coal
B. It is renewable
Burning fossil fuels releases large amounts of:
A. Oxygen B. Carbon dioxide C. Hydrogen D. Helium
B. Carbon dioxide
Renewable energy sources are:
A. Naturally replenished
B. Always expensive
C. Fossil fuels
D. Limited
A. Naturally replenished
Why are fossil fuels non-renewable?
A. They cannot burn
B. They take millions of years to form
C. They are free
D. They use sunligh
B. They take millions of years to form
Which energy source uses moving water to turn turbines?
A. Wind
B. Hydro
C. Oil
D. Coal
B. Hydro
One disadvantage of wind energy is:
A. Wind is not always available
B. It uses oil
C. It produces coal
D. It cannot generate electricity
A. Wind is not always available
Increased carbon dioxide contributes to:
A. Climate change
B. Less gravity
C. Earthquakes
D. Tides
A. Climate change
Which pair contains only renewable sources?
A. Coal and solar
B. Wind and hydro
C. Oil and gas
D. Uranium and wind
B. Wind and hydro
Which is NOT a fossil fuel?
A. Coal
B. Oil
C. Natural gas
D. Uranium
D. Uranium
Which energy source uses heat from inside Earth?
A. Solar
B. Geothermal
C. Wind
D. Biomass
B. Geothermal
Which is an advantage of fossil fuels?
A. Renewable
B. No pollution
C. Can provide reliable energy when needed
D. Unlimited supply
C. Can provide reliable energy when needed
Which renewable source can affect river ecosystems? A. Solar B. Hydroelectric dams C. Wind D. Geothermal
B. Hydroelectric dams
Explain why solar energy is classified as renewable.
Sunlight is naturally replenished and will not run out on a human timescale
Name the three main fossil fuels.
Coal, oil and natural gas.
Explain how a wind turbine generates electricity.
Wind turns the blades, which drive a generator to produce electricity.
Give one advantage and one disadvantage of solar energy.
Advantage: renewable/low emissions during operation. Disadvantage: depends on sunlight/needs storage.
Explain one environmental problem caused by burning fossil fuels.
They release carbon dioxide, increasing the greenhouse effect and contributing to climate change.
Give three renewable energy sources and briefly explain how each produces useful energy.
E.g. solar—sunlight; wind—moving air turns turbines; hydro—moving water turns turbines.
Explain why uranium is non-renewable even though it is not a fossil fuel.
Uranium exists in a limited supply and cannot be replaced quickly after it is used.
A power station burns coal to heat water and produce steam. Explain how this eventually produces electricity.
Coal releases heat → water becomes steam → steam turns a turbine → generator produces electricity.
Compare renewable and non-renewable energy sources. Give one advantage and one disadvantage of each.
Renewable: replenished/lower emissions, but intermittent. Non-renewable: reliable/high energy output, but limited and often polluting.
“Renewable energy has no environmental impact.” Explain why this statement is incorrect.
Renewable sources generally have lower emissions, but dams can affect rivers, wind farms use land, and solar panels require materials and land.