Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 249 · 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 flow of charge is measured in amperes (A). (a) True (b) False
2. 2.Which of these is measured in ohms (Ω)? (a) power (b) how much a part resists (c) the push of a cell (d) the flow of charge
3. 3.📏 How many amperes (A) is 610 mA? =
4. 4.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
5. 5.True or false: voltage is measured in ohms (Ω). (a) True (b) False
6. 6.True or false: the ammeter is joined in series. (a) True (b) False
7. 7.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
8. 8.Which of these is measured in amperes (A)? (a) current (b) voltage (c) power (d) resistance
9. 9.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
10. 10.True or false: the ammeter is joined across a part. (a) True (b) False
11. 11.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) current (d) voltage
12. 12.📏 How many watts (W) is 0.1 kW?
13. 13.Which of these is measured in volts (V)? (a) current (b) power (c) the push of a cell (d) how much a part resists
14. 14.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
15. 15.True or false: the ammeter measures voltage. (a) False (b) True
16. 16.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
17. 17.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
18. 18.True or false: the voltmeter measures current. (a) False (b) True
19. 19.True or false: the push of a cell is measured in watts (W). (a) False (b) True
20. 20.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
21. 21.📏 How many kilowatts (kW) is 4450 W? =
22. 22.📏 How many watts (W) is 2.4 kW?
23. 23.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
24. 24.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
25. 25.📏 How many watts (W) is 0.3 kW?
26. 26.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) resistance (d) the flow of charge
27. 27.Which of these is measured in ohms (Ω)? (a) voltage (b) current (c) resistance (d) the push of a cell
28. 28.True or false: resistance is measured in watts (W). (a) False (b) True
29. 29.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) a bigger tank
30. 30.True or false: how much a part resists is measured in watts (W). (a) False (b) True
31. 31.📏 How many ohms (Ω) is 8.6 kΩ?
32. 32.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
33. 33.📏 How many kilo-ohms (kΩ) is 7000 Ω? =
34. 34.📏 How many amperes (A) is 2920 mA? =
35. 35.True or false: voltage is measured in volts (V). (a) False (b) True
36. 36.📏 How many ohms (Ω) is 1.4 kΩ?
37. 37.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
38. 38.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water pressure (d) the water tank lid
39. 39.📏 How many watts (W) is 1.8 kW?
40. 40.Which of these is measured in watts (W)? (a) the flow of charge (b) power (c) how much a part resists (d) the push of a cell

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