Energy

Question 1

Define tidal energy

Answer 1

Using the incoming and outgoing motion of the tide to generate electricity.

Question 2

Define wave energy

Answer 2

Using the motion of waves to generate electricity.

Question 3

Define hydroelectric power

Answer 3

Using the power of falling water in rivers to drive generators. At the moment dams have to be built to create HEP power.

Question 4

Define biofuels

Answer 4

The use of biological matter to create energy. It is a renewable form of energy, but because the mater is often burnt it still releases greenhouse gases.

Question 5

Define geothermal

Answer 5

Geothermal uses thermal energy from the earth to heat water. The water can be used as a source of hot water or the steam released can be used to drive turbines.

Question 6

Advantages of solar energy

Answer 6

• A clean form of energy
• Infinite source
• Panels can be used locally, on top of someone’s house
• It can be used to heat water and generate electricity

Question 7

Advantages of wind energy

Answer 7

• A clean form of energy
• Infinite source
• They can be placed at sea, in mountains from settlements

Question 8

Advantages of hydroelectric energy

Answer 8

• A clean form of energy
• Infinite source
• The built dam can also prevent flooding