Back to the lesson and practice
ActivityPractice worksheet
Do it🖨️ On paper✏️ On screen
New copyMake a new one

Works with a finger, a stylus or a mouse. Nothing is saved or sent anywhere.

Write your answers with a finger, mouse or stylus. Switch to Scroll to move around the page. A stylus always writes.

eurekami

9th grade electricity and magnetism

9th grade (Year 10 in England) · 16 questions · Common Core: NGSS.HS-PS3-1, NGSS.HS-PS3-3 · England: KS4 Combined Science: Electricity, GCSE Combined Science: Electricity, GCSE Combined Science: Electricity (domestic uses and safety)

Name

Date

Score/ 16

  1. Question 1

    A 5 W device is used for 30 s. How much energy does it transfer, in J?

    AnswerJ

  2. Question 2

    A current of 0.2 A flows for 60 s. How much charge flows, in coulombs (C)?

    AnswerC

  3. Question 3

    75 C of charge flows through a lamp in 5 minutes. What is the current, in A?

    AnswerA

  4. Question 4

    How long does it take for 300 C to flow when the current is 5 A, in s?

    Answers

  5. Question 5

    What are the UK mains voltage and frequency?

    • A. 120 V and 60 Hz
    • B. 230 V and 50 Hz
    • C. 230 V and 0 Hz
    • D. 12 V and 50 Hz

  6. Question 6

    Mains electricity: which statement is NOT true?

    • A. Double-insulated appliances do not need an earth wire.
    • B. Mains electricity in the UK is alternating current.
    • C. The neutral wire is at 230 V.
    • D. The fuse is connected in the live wire.

  7. Question 7

    In a UK three-pin plug, which wire is this: brown insulation?

    • A. live wire
    • B. neutral wire
    • C. earth wire

  8. Question 8

    A current of 0.5 A flows for 10 s. How much charge flows, in coulombs?

    AnswerC

  9. Question 9

    An appliance on UK mains (230 V) draws a current of 2 A. What is its power, in W?

    AnswerW

  10. Question 10

    A 10 W device is used for 10 s. How much energy does it transfer, in J?

    AnswerJ

  11. Question 11

    A current of 4 A flows for 120 s. How much charge flows, in coulombs (C)?

    AnswerC

  12. Question 12

    900 C of charge flows through a lamp in 5 minutes. What is the current, in A?

    AnswerA

  13. Question 13

    How long does it take for 180 C to flow when the current is 4 A, in s?

    Answers

  14. Question 14

    Why is it dangerous to touch the live wire even if the appliance is switched off at the switch?

    • A. The switch makes the voltage higher
    • B. It is not dangerous
    • C. The live wire is always cold
    • D. The live wire is still at a high voltage, so current could flow through you to earth

  15. Question 15

    Mains electricity: which statement is NOT true?

    • A. The earth wire only carries current when there is a fault.
    • B. The fuse is connected in the live wire.
    • C. Mains electricity in the UK is alternating current.
    • D. A battery supplies alternating current.

  16. Question 16

    In a UK three-pin plug, which wire is this: blue insulation?

    • A. live wire
    • B. neutral wire
    • C. earth wire

Write your answers right on the page. · Free from eurekami.com

All done? Check your answers
  1. 150 J
  2. 12 C
  3. 0.25 A
  4. 60 s
  5. 230 V and 50 Hz
  6. The neutral wire is at 230 V.
  7. live wire
  8. 5 C
  9. 460 W
  10. 100 J
  11. 480 C
  12. 3 A
  13. 45 s
  14. The live wire is still at a high voltage, so current could flow through you to earth
  15. A battery supplies alternating current.
  16. neutral wire