KS3 Unit 9i Energy and Electricity 1© NTScience.co.uk 2005

Energy and Electricity

KS3 Unit 9i Energy and Electricity 2© NTScience.co.uk 2005

Q1. What is the most useful form of energy?

KS3 Unit 9i Energy and Electricity 3© NTScience.co.uk 2005

A1. Electricity

KS3 Unit 9i Energy and Electricity 4© NTScience.co.uk 2005

Q2. What usually carries electrical current from A

to B?

KS3 Unit 9i Energy and Electricity 5© NTScience.co.uk 2005

A2. A wire

KS3 Unit 9i Energy and Electricity 6© NTScience.co.uk 2005

Q3. What transforms electrical energy to light

energy?

KS3 Unit 9i Energy and Electricity 7© NTScience.co.uk 2005

A3. A lamp or LED

KS3 Unit 9i Energy and Electricity 8© NTScience.co.uk 2005

Q4. What transforms chemical energy into

electrical energy?

KS3 Unit 9i Energy and Electricity 9© NTScience.co.uk 2005

A4. A cell

KS3 Unit 9i Energy and Electricity 10© NTScience.co.uk 2005

Q5. What do we call several cells joined in

series?

KS3 Unit 9i Energy and Electricity 11© NTScience.co.uk 2005

A5. A battery

KS3 Unit 9i Energy and Electricity 12© NTScience.co.uk 2005

Q6. Name a precious yellow electrically conducting metal.

KS3 Unit 9i Energy and Electricity 13© NTScience.co.uk 2005

A6. Gold

KS3 Unit 9i Energy and Electricity 14© NTScience.co.uk 2005

Q7. Name a metal used in house wiring.

KS3 Unit 9i Energy and Electricity 15© NTScience.co.uk 2005

A7. Copper

KS3 Unit 9i Energy and Electricity 16© NTScience.co.uk 2005

Q8. What do we call the flow of electricity.?

KS3 Unit 9i Energy and Electricity 17© NTScience.co.uk 2005

A8. Current

KS3 Unit 9i Energy and Electricity 18© NTScience.co.uk 2005

Q9. What changes from "off" to "on" and back

again?

KS3 Unit 9i Energy and Electricity 19© NTScience.co.uk 2005

A9. A switch

KS3 Unit 9i Energy and Electricity 20© NTScience.co.uk 2005

Q10. What type of circuit has electrical

components all in a row.

KS3 Unit 9i Energy and Electricity 21© NTScience.co.uk 2005

A10. A series circuit

KS3 Unit 9i Energy and Electricity 22© NTScience.co.uk 2005

Q11. What is the SI unit of electrical current

called?

KS3 Unit 9i Energy and Electricity 23© NTScience.co.uk 2005

A11. Amp

KS3 Unit 9i Energy and Electricity 24© NTScience.co.uk 2005

Q12. Name the SI unit of power.

KS3 Unit 9i Energy and Electricity 25© NTScience.co.uk 2005

A12. Watt

KS3 Unit 9i Energy and Electricity 26© NTScience.co.uk 2005

Q13. What is needed to do work?

KS3 Unit 9i Energy and Electricity 27© NTScience.co.uk 2005

A13. Energy

KS3 Unit 9i Energy and Electricity 28© NTScience.co.uk 2005

Q14. What rotates to produce electricity?

KS3 Unit 9i Energy and Electricity 29© NTScience.co.uk 2005

A14. A generator

KS3 Unit 9i Energy and Electricity 30© NTScience.co.uk 2005

Q15. What type of circuit has each electrical

component in its own loop.

KS3 Unit 9i Energy and Electricity 31© NTScience.co.uk 2005

A15. A parallel circuit

KS3 Unit 9i Energy and Electricity 32© NTScience.co.uk 2005

Q16. Where is most electricity for cities and

towns generated?

KS3 Unit 9i Energy and Electricity 33© NTScience.co.uk 2005

A16. A power station

KS3 Unit 9i Energy and Electricity 34© NTScience.co.uk 2005

Q17. What do we use to measure a voltage?

KS3 Unit 9i Energy and Electricity 35© NTScience.co.uk 2005

A17. A voltmeter

KS3 Unit 9i Energy and Electricity 36© NTScience.co.uk 2005

Q18. What is used to measure electrical

current?

KS3 Unit 9i Energy and Electricity 37© NTScience.co.uk 2005

A18. An ammeter

KS3 Unit 9i Energy and Electricity 38© NTScience.co.uk 2005

Well Done!Now check your score