Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 975 · 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 the push of a cell? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
2. 2.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) the push of a cell (d) resistance
3. 3.True or false: power is measured in watts (W). (a) True (b) False
4. 4.Which of these is measured in volts (V)? (a) power (b) voltage (c) resistance (d) how much a part resists
5. 5.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
6. 6.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
7. 7.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
8. 8.📏 How many kilo-ohms (kΩ) is 4100 Ω? =
9. 9.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
10. 10.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) the flow of water (d) a narrow pipe
11. 11.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
12. 12.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
13. 13.True or false: how much a part resists is measured in volts (V). (a) True (b) False
14. 14.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
15. 15.True or false: the push of a cell is measured in volts (V). (a) True (b) False
16. 16.📏 How many kilowatts (kW) is 3300 W? =
17. 17.📏 How many amperes (A) is 1120 mA? =
18. 18.True or false: the ammeter measures current. (a) True (b) False
19. 19.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
20. 20.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
22. 22.True or false: the voltmeter measures voltage. (a) True (b) False
23. 23.📏 How many kilo-ohms (kΩ) is 1000 Ω? =
24. 24.True or false: the ammeter is joined in series. (a) True (b) False
25. 25.📏 How many kilo-ohms (kΩ) is 600 Ω? =
26. 26.True or false: the voltmeter measures current. (a) False (b) True
27. 27.📏 How many watts (W) is 0.2 kW?
28. 28.📏 How many amperes (A) is 570 mA? =
29. 29.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
30. 30.📏 How many kilo-ohms (kΩ) is 9800 Ω? =
31. 31.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the tap handle (d) the water tank lid
32. 32.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
33. 33.True or false: current is measured in volts (V). (a) False (b) True
34. 34.True or false: voltage is measured in ohms (Ω). (a) False (b) True
35. 35.📏 How many kilowatts (kW) is 2550 W? =
36. 36.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
37. 37.Which of these is measured in watts (W)? (a) the flow of charge (b) resistance (c) current (d) power
38. 38.📏 How many kilowatts (kW) is 1650 W? =
39. 39.📏 How many milliamperes (mA) is 0.07 A?
40. 40.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) current (c) how much a part resists (d) power

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