Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 559 · 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.📏 How many kilo-ohms (kΩ) is 4200 Ω? =
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
3. 3.📏 How many kilowatts (kW) is 3500 W? =
4. 4.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
5. 5.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
6. 6.📏 How many ohms (Ω) is 0.8 kΩ?
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
8. 8.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
9. 9.📏 How many watts (W) is 3.3 kW?
10. 10.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 100 (d) 1024
11. 11.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
12. 12.True or false: the voltmeter is joined across a part. (a) True (b) False
13. 13.Which of these is measured in amperes (A)? (a) resistance (b) the flow of charge (c) how much a part resists (d) the push of a cell
14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
15. 15.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
16. 16.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) voltage (d) the flow of charge
17. 17.📏 How many kilo-ohms (kΩ) is 5800 Ω? =
18. 18.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
19. 19.True or false: the flow of charge is measured in volts (V). (a) False (b) True
20. 20.📏 How many kilowatts (kW) is 950 W? =
21. 21.True or false: the voltmeter is joined in series. (a) False (b) True
22. 22.True or false: power is measured in amperes (A). (a) True (b) False
23. 23.Which of these is measured in volts (V)? (a) how much a part resists (b) power (c) the push of a cell (d) the flow of charge
24. 24.📏 How many watts (W) is 3.5 kW?
25. 25.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the push of a cell (c) power (d) voltage
26. 26.Which of these is measured in ohms (Ω)? (a) current (b) energy used each second (c) the push of a cell (d) resistance
27. 27.📏 How many kilowatts (kW) is 4250 W? =
28. 28.True or false: the ammeter is joined across a part. (a) False (b) True
29. 29.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) the flow of water (d) a narrow pipe
30. 30.True or false: the flow of charge is measured in watts (W). (a) True (b) False
31. 31.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
32. 32.True or false: the ammeter is joined in series. (a) False (b) True
33. 33.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
34. 34.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) current (d) power
35. 35.📏 How many kilowatts (kW) is 4300 W? =
36. 36.True or false: the voltmeter measures voltage. (a) False (b) True
37. 37.Which of these is measured in watts (W)? (a) the push of a cell (b) power (c) current (d) how much a part resists
38. 38.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
39. 39.📏 How many kilo-ohms (kΩ) is 7500 Ω? =
40. 40.Which of these is measured in volts (V)? (a) energy used each second (b) how much a part resists (c) voltage (d) power

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