Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 899 · 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 voltmeter measures current. (a) True (b) False
2. 2.📏 How many amperes (A) is 1250 mA? =
3. 3.📏 How many kilowatts (kW) is 550 W? =
4. 4.True or false: the ammeter is joined in series. (a) True (b) False
5. 5.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
6. 6.📏 How many watts (W) is 0.4 kW?
7. 7.True or false: voltage is measured in volts (V). (a) True (b) False
8. 8.True or false: resistance is measured in amperes (A). (a) False (b) True
9. 9.📏 How many kilo-ohms (kΩ) is 4600 Ω? =
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
11. 11.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
12. 12.📏 How many amperes (A) is 160 mA? =
13. 13.True or false: voltage is measured in amperes (A). (a) True (b) False
14. 14.Which of these is measured in ohms (Ω)? (a) energy used each second (b) current (c) resistance (d) the flow of charge
15. 15.True or false: the voltmeter measures voltage. (a) True (b) False
16. 16.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
17. 17.True or false: power is measured in ohms (Ω). (a) True (b) False
18. 18.True or false: the ammeter is joined across a part. (a) True (b) False
19. 19.📏 How many milliamperes (mA) is 1.52 A?
20. 20.True or false: power is measured in watts (W). (a) False (b) True
21. 21.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
22. 22.📏 How many ohms (Ω) is 2.7 kΩ?
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
24. 24.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
25. 25.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
26. 26.True or false: the flow of charge is measured in watts (W). (a) False (b) True
27. 27.Which of these is measured in amperes (A)? (a) current (b) energy used each second (c) voltage (d) how much a part resists
28. 28.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 10 (d) 1000
29. 29.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
30. 30.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
31. 31.True or false: the voltmeter is joined in series. (a) True (b) False
32. 32.📏 How many amperes (A) is 1840 mA? =
33. 33.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the water pressure (d) the tap handle
34. 34.📏 How many watts (W) is 3.7 kW?
35. 35.Which of these is measured in amperes (A)? (a) energy used each second (b) power (c) how much a part resists (d) the flow of charge
36. 36.📏 How many kilo-ohms (kΩ) is 2000 Ω? =
37. 37.📏 How many amperes (A) is 2540 mA? =
38. 38.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
39. 39.True or false: voltage is measured in ohms (Ω). (a) True (b) False
40. 40.Which of these is measured in volts (V)? (a) how much a part resists (b) voltage (c) the flow of charge (d) current

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