© NTScience.co.uk 2005KS3 Unit 9i Energy and Electricity1 Energy and Electricity.

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?

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A1. Electricity

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Q2. What usually carries electrical current from A

to B?

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A2. A wire

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Q3. What transforms electrical energy to light

energy?

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A3. A lamp or LED

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Q4. What transforms chemical energy into

electrical energy?

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A4. A cell

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Q5. What do we call several cells joined in

series?

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A5. A battery

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Q6. Name a precious yellow electrically conducting metal.

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A6. Gold

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Q7. Name a metal used in house wiring.

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A7. Copper

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

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A8. Current

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

again?

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A9. A switch

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Q10. What type of circuit has electrical

components all in a row.

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A10. A series circuit

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Q11. What is the SI unit of electrical current

called?

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A11. Amp

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Q12. Name the SI unit of power.

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A12. Watt

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Q13. What is needed to do work?

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A13. Energy

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Q14. What rotates to produce electricity?

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A14. A generator

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Q15. What type of circuit has each electrical

component in its own loop.

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A15. A parallel circuit

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Q16. Where is most electricity for cities and

towns generated?

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A16. A power station

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Q17. What do we use to measure a voltage?

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A17. A voltmeter

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Q18. What is used to measure electrical

current?

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A18. An ammeter

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