Unit 3: Alternative sources of energy

…  means capturing heat when it is available and releasing it later when needed

• Geothermal power

•  Solar panels

• Thermal storage

• Linear system

… is generated from running water. Dams are built across the lake or river in a valley to trap water. The water flows through tunnels and turns the turbine which makes electricity.

• Nuclear energy 

  
  

• Wave power

• Thermal storage

• Hydroelectricity

Geothermal Heat Pump (GHP) is a highly efficient heating and cooling system that transfers heat between a building and the earth using a network of underground pipes

• True

• False

… comes from the movement of water in the sea. These movements happen twice a day.

• Tidal energy

• Wave power

• Fossil fuels

• Hydroelectricity

 Label the diagram below:

•  Torsion/ Torque

• Friction

• Rotation

Regarding our today’s topic, GHP stands for:

• Generous Humorous Partner

• Great Homework Procrastinator

• Geothermal Heat Pump

Generator is:

• a device that can stop the turbine from turning.

• a shaft that turns slowly and carries power from the hub to the gearbox.

• the device that changes mechanical energy into electricity.

… is made from radioactive uranium ore which occurs naturally in the ground.

• Linear system

•  Solar panels

• Thermal storage

• Nuclear energy

 In solar panels, sunlight is converted into electricity by a ___ material.

• Conductor

• Insulator

• Semiconductor

• Superconductor

Label the diagram below:

• Centrifugal force

• Contraction force

• Friction force

• Pressure force