Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 280 · 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.True or false: the ammeter measures voltage. (a) True (b) False
2. 2.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
3. 3.📏 How many kilowatts (kW) is 4500 W? =
4. 4.📏 How many kilowatts (kW) is 4350 W? =
5. 5.True or false: the voltmeter measures voltage. (a) False (b) True
6. 6.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
7. 7.📏 How many milliamperes (mA) is 0.17 A?
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
9. 9.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
10. 10.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
11. 11.📏 How many kilo-ohms (kΩ) is 9800 Ω? =
12. 12.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
13. 13.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
14. 14.True or false: power is measured in watts (W). (a) True (b) False
15. 15.📏 How many kilo-ohms (kΩ) is 8700 Ω? =
16. 16.True or false: resistance is measured in ohms (Ω). (a) False (b) True
17. 17.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 10 (d) 1000
18. 18.Which of these is measured in watts (W)? (a) resistance (b) the push of a cell (c) current (d) energy used each second
19. 19.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
20. 20.Which of these is measured in ohms (Ω)? (a) voltage (b) current (c) resistance (d) the flow of charge
21. 21.True or false: voltage is measured in amperes (A). (a) True (b) False
22. 22.📏 How many watts (W) is 1.7 kW?
23. 23.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
24. 24.📏 How many kilowatts (kW) is 2500 W? =
25. 25.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the water pressure (d) the tap handle
26. 26.True or false: the ammeter measures current. (a) True (b) False
27. 27.📏 How many milliamperes (mA) is 1.82 A?
28. 28.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) power (d) energy used each second
29. 29.True or false: the voltmeter is joined in series. (a) True (b) False
30. 30.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
31. 31.Which of these is measured in watts (W)? (a) resistance (b) voltage (c) power (d) the flow of charge
32. 32.True or false: energy used each second is measured in volts (V). (a) True (b) False
33. 33.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) the pipe colour (d) a narrow pipe
34. 34.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
35. 35.True or false: the voltmeter is joined across a part. (a) False (b) True
36. 36.📏 How many watts (W) is 1.2 kW?
37. 37.Which of these is measured in volts (V)? (a) resistance (b) energy used each second (c) the push of a cell (d) current
38. 38.📏 How many milliamperes (mA) is 2.48 A?
39. 39.True or false: the voltmeter measures current. (a) True (b) False
40. 40.📏 How many amperes (A) is 2340 mA? =

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