an energy resource that can be replenished as quickly as it is used or will not run out

an energy resource that cannot be replenished as quickly as it is used and will eventually run out

energy sources formed over millions of years from the remains of dead organisms

using energy resources so that, in the future, there will be enough for people's needs

Energy resources

Physics

Danger from electric shock

Short circuits and earth wires

Power of an appliance or electric circuit

Calculating with electric charge: including complex calculations

The National Grid

Transformers

In the Circuit components unit, pupils learnt how the resistance of filament lamps and diodes change with current and about the properties and applications of light dependent resistors and thermistors.

This unit covers UK domestic a.c. supply, mains wiring safety, energy changes in electrical systems, power ratings, and energy transfer. It explains the National Grid, transformers, energy sources, and calculations for energy changes and power transmission efficiency.

Mains electricity

Which of the following renewable energy resources emits pollution when used to generate electricity?

Which non-renewable energy resource does not contribute to the greenhouse effect?

What is the main environmental concern with wind turbines?

Match each renewable energy resource with its description:

using energy in a way that meets present needs without compromising future needs

it reduces energy consumption and promotes sustainability

What role does energy efficiency play in sustainable energy?

a fuel formed from the remains of ancient organisms

What is one effect of using fossil fuels on the environment?

an energy resource that can be replenished as it is used

an energy resource that cannot be replenished

an energy resource that is always available

What is one example of a renewable energy resource?

What is the primary component of natural gas?

energy cannot be created or destroyed, only transformed

energy is always lost in every transformation

What is the law of conservation of energy?

Energy resources

Lesson outcome