G.4 Topic 2 L.1,2 Revision

…………….. is the process of burning fuel to produce heat and light.

• Combustion

• Fuel

• Turbine

• Generator

A ……………… is a device that changes energy of motion into electrical energy.

• Boiler

• generator

• Turbine

• Cooling tower

A ……………… is a material that releases energy when it burns.

• Device

• Combustion

• fuel

• Generator

A …………………… is a device that spins as the gas flows and

changes heat energy into energy of motion.

• Generator

• turbine

• Boiler

• Cooling tower

During combustion, substances in the fuel combine with ................... in the air.

• Hydrogen

• Nitrogen

• Oxygen

• Carbon dioxide

Energy in fuel comes from

............................ change.

• a. electric

• b. kinetic

• c. chemical

• d. Sound

…………………………. are materials that formed as plants and animals

decayed underground.

• Fossil fuels

• Nuclear fuel

• Wind energy

• Solar energy

……………………… is a liquid fossil fuel formed by decayed plants and animals.

• Petroleum

• Coal

• Nuclear fuel

• Natural gas

………………….. is a fossil fuel that occurs in the gas state.

• Coal

• Petroleum

• Natural gas

• Wood

Coal is a ...................... energy source.

• renewable

• non renewable