Mrs Disney Y10 - Physics generating electricity

Super heated steam is used to turn a ______________?

• Transformer

• Battery

• Turbine

• Toothed Gear

What is meant by fossil fuels?

• Fuels that are derived from fossils
• Fuels that are derived from old people
• Fuels that are derived from using plant material
• Fuels that are derived from the decomposition of faeces

Most forms of electrical generation rely on a turbine. Which form doesn't?

• Tidal
• Hydro
• Solar
• Wind

How is electricity measured and billed by the power company?

• watts

• kilowatts

• watt hours

• kilowatt hours

which type of renewable energy is currently creating the most electricity generation?

• geothermal

• hydroelectric

• solar

• wind

if a tractor trailer truck is 20% efficient, what happened to the other 80%

• energy is destroyed

• energy is lost as heat

• the 80% is still in the gas tank

• energy is converted into matter

Where does geothermal energy come from?

• The Earth's atmosphere
• The Earth's asthenosphere
• The Earth's crust
• The Earth's troposphere

What are the 3 fossil fuels?

• Coal, Crude Oil, Natural Gas
• Coal, Wood, Cooking Oil
• Wood, Petrol, Natural Gas
• British Gas, Coal, Wood

What do we call the type of thermal energy ‘locked-in’ deep under the Earth’s   surface?

• Volcano
• Fountain
• Geothermal
• Cracking

A light bulb converts 100J of electrical energy into 40J of light energy. What is it’s efficiency as a percentage?

• 140%
• 60%
• 40%
• Impossible to say.