Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 521 · 40 questions

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

1. 1.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
2. 2.True or false: the ammeter is joined in series. (a) True (b) False
3. 3.📏 How many ohms (Ω) is 9.3 kΩ?
4. 4.True or false: the ammeter measures current. (a) False (b) True
5. 5.📏 How many kilowatts (kW) is 650 W? =
6. 6.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the water pressure (d) the flow of water
7. 7.True or false: energy used each second is measured in watts (W). (a) True (b) False
8. 8.📏 How many kilo-ohms (kΩ) is 9400 Ω? =
9. 9.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
10. 10.True or false: resistance is measured in watts (W). (a) False (b) True
11. 11.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
12. 12.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
13. 13.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) energy used each second (d) the flow of charge
14. 14.📏 How many amperes (A) is 1190 mA? =
15. 15.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
16. 16.True or false: the voltmeter is joined across a part. (a) False (b) True
17. 17.Which of these is measured in watts (W)? (a) current (b) power (c) how much a part resists (d) the push of a cell
18. 18.True or false: the ammeter measures voltage. (a) False (b) True
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
20. 20.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
21. 21.Which of these is measured in volts (V)? (a) how much a part resists (b) voltage (c) resistance (d) energy used each second
22. 22.True or false: power is measured in volts (V). (a) True (b) False
23. 23.Which of these is measured in ohms (Ω)? (a) energy used each second (b) how much a part resists (c) voltage (d) current
24. 24.True or false: the push of a cell is measured in volts (V). (a) True (b) False
25. 25.📏 How many ohms (Ω) is 2.7 kΩ?
26. 26.True or false: voltage is measured in amperes (A). (a) False (b) True
27. 27.📏 How many watts (W) is 1.3 kW?
28. 28.📏 How many watts (W) is 3.5 kW?
29. 29.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
30. 30.📏 How many kilo-ohms (kΩ) is 7900 Ω? =
31. 31.📏 How many ohms (Ω) is 6.1 kΩ?
32. 32.True or false: the voltmeter measures current. (a) True (b) False
33. 33.True or false: voltage is measured in ohms (Ω). (a) False (b) True
34. 34.📏 How many kilowatts (kW) is 250 W? =
35. 35.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
36. 36.True or false: the voltmeter measures voltage. (a) False (b) True
37. 37.📏 How many kilo-ohms (kΩ) is 2100 Ω? =
38. 38.True or false: voltage is measured in volts (V). (a) False (b) True
39. 39.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
40. 40.True or false: the voltmeter is joined in series. (a) True (b) False

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