Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 809 · 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: energy used each second is measured in watts (W). (a) True (b) False
2. 2.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
3. 3.📏 Which unit measures the push of a cell? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
4. 4.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
5. 5.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) power (d) how much a part resists
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
8. 8.📏 How many milliamperes (mA) is 0.86 A?
9. 9.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 1024 (d) 100
10. 10.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
11. 11.📏 How many kilo-ohms (kΩ) is 8600 Ω? =
12. 12.True or false: the voltmeter is joined across a part. (a) True (b) False
13. 13.True or false: resistance is measured in amperes (A). (a) True (b) False
14. 14.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
15. 15.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) the push of a cell (d) resistance
16. 16.📏 How many watts (W) is 1.5 kW?
17. 17.Which of these is measured in volts (V)? (a) resistance (b) the flow of charge (c) voltage (d) power
18. 18.📏 How many ohms (Ω) is 3.1 kΩ?
19. 19.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
20. 20.Which of these is measured in amperes (A)? (a) resistance (b) power (c) energy used each second (d) the flow of charge
21. 21.True or false: current is measured in volts (V). (a) True (b) False
22. 22.📏 How many ohms (Ω) is 5.5 kΩ?
23. 23.📏 How many kilowatts (kW) is 2950 W? =
24. 24.True or false: current is measured in amperes (A). (a) False (b) True
25. 25.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
26. 26.📏 How many ohms (Ω) is 6.1 kΩ?
27. 27.📏 How many amperes (A) is 340 mA? =
28. 28.True or false: voltage is measured in ohms (Ω). (a) True (b) False
29. 29.Which of these is measured in watts (W)? (a) current (b) the flow of charge (c) resistance (d) energy used each second
30. 30.True or false: the ammeter is joined across a part. (a) False (b) True
31. 31.📏 How many watts (W) is 3.7 kW?
32. 32.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
33. 33.📏 How many watts (W) is 5 kW?
34. 34.📏 How many milliamperes (mA) is 0.63 A?
35. 35.📏 How many kilo-ohms (kΩ) is 8500 Ω? =
36. 36.True or false: the voltmeter is joined in series. (a) True (b) False
37. 37.📏 How many ohms (Ω) is 8.4 kΩ?
38. 38.📏 How many ohms (Ω) is 8.8 kΩ?
39. 39.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the water tank lid (d) the pipe colour
40. 40.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter

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