Energy

What is the energy change when coal is burned?

• Kinetic to Thermal

• Chemical to thermal

• Thermal to kinetic

• Kinetic to chemical

What does the kinetic energy in steam in a power station do?

• Turn a turbine to generate electrical energy

• Heat a furnace

• Warm the cooling tower

What happens in the generator of a power station?

• Steam pushes on the blades of the turbine and turns it around.

• Water is heated and turned into steam

• A coil is turned inside a magnetic field and an electric current is produced

• Coal is burned

What happens in the furnace of a coal power station?

• Coal is burned

• Steam pushes on the blades of the turbine and turns it around

• A coil is turned inside a magnetic field and an electric current is produced

• Water is heated and turned into steam

What happens in the boiler of a power station

• A coil is turned inside a magnetic field and an electric current is produced

• Coal is burned

• Steam pushes on the blades of the turbine and turns it around.

• Water is heated and turned into steam

What type of renewable energy uses the heat of rocks underground to create steam which then generates electricity.

• Solar

• Geothermal

• Nuclear

• Tidal

What type of renewable energy uses the kinetic energy in waves to generate electricity?

• Biomass

• Wind

• Geothermal

• Wave

What type of renewable energy uses solar cells to trap the suns energy in order to generate electricity?

• Biomass

• Wind

• Tidal

• Solar

Which is an disadvantage of wind energy?

• It is renewable

• No pollution from burning

• Cheap and easy to build

• Can be ugly and noisy

Which is an advantage of hydroelectric energy?

• Costs lots of money to build a dam

• Renewable

• Artificial reservoirs can damage the environment

• Can only be used where there is high ground