SCIENCE FORM 3 CHAPTER 6

What is the definition for renewable energy sources?

• Energy sources that cannot be replaced and will deplete

• Energy sources that can be replaced continually and will never deplete

• All renewable resources cannot be used to keep the earth cleaner.

• All renewable resources are bad for the environment.

Natural resources form in nature. Which of the following is NOT a natural resource?

• Plastic

• Oil

• Coal

• Water

A ________________ is a device used to generate electricity

• oil

• engine

• battery

• generator

How do wind turbines generate electricity?

• The blades of the wind turbine are moved by the wind, which turns a generator inside it and generates electricity

• The National Grid spins the turbines to transfer electricity to homes

• Wind turbines do not generate electricity, they heat water

• The blades spin to heat water, create steam, which turns a turbine, and produces electricity

Transformers on distribution poles .............. voltage for use in homes.

• step up

• step down

• step right

• step left

___________________ is generated at the electricity plant by the burning of fossil fuels

• Solar energy

• Water

• A magnet

• Steam

Examples of non-renewable energy are ______________ .

• water and wind.

• natural gas, coal and oil.

• coal, natural gas and wind.

• hydropower, solar and nuclear.

How is Electricity Generated?

• By the use of turbines

• by the use of sub stations

• by the use of electricity

• by the use of transmission lines

How do Solar power plant produce electricity?

• the sunlight turns the turbines

• the steam from the sunlight rotates the turbines

• it doesn't happen at all.

• the solar panels collect the lights coming from the sun.

How does the powerplant produce electricity?

• the thunder hit the transmission line and it produce electricity

• the water flows and produce steam to turn the turbines and generate electricity

• the substation generate the electricity

• none of the above