Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 944 · 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 kilowatts (kW) is 1300 W? =
2. 2.True or false: the voltmeter measures current. (a) True (b) False
3. 3.📏 How many kilo-ohms (kΩ) is 6100 Ω? =
4. 4.📏 How many amperes (A) is 2490 mA? =
5. 5.Which of these is measured in ohms (Ω)? (a) voltage (b) the push of a cell (c) power (d) resistance
6. 6.📏 How many ohms (Ω) is 0.5 kΩ?
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
9. 9.📏 How many amperes (A) is 1590 mA? =
10. 10.True or false: the voltmeter measures voltage. (a) False (b) True
11. 11.Which of these is measured in volts (V)? (a) energy used each second (b) how much a part resists (c) voltage (d) power
12. 12.📏 How many amperes (A) is 1990 mA? =
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the push of a cell (c) the flow of charge (d) power
15. 15.True or false: energy used each second is measured in volts (V). (a) True (b) False
16. 16.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
17. 17.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
18. 18.📏 How many watts (W) is 0.6 kW?
19. 19.Which of these is measured in volts (V)? (a) energy used each second (b) resistance (c) the push of a cell (d) current
20. 20.📏 How many kilowatts (kW) is 2850 W? =
21. 21.📏 How many kilowatts (kW) is 1150 W? =
22. 22.True or false: the voltmeter is joined in series. (a) False (b) True
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
24. 24.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
25. 25.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
26. 26.True or false: the ammeter measures voltage. (a) True (b) False
27. 27.True or false: voltage is measured in volts (V). (a) True (b) False
28. 28.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
29. 29.📏 How many ohms (Ω) is 8.2 kΩ?
30. 30.True or false: current is measured in volts (V). (a) False (b) True
31. 31.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
32. 32.📏 How many kilo-ohms (kΩ) is 3500 Ω? =
33. 33.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
34. 34.📏 How many kilo-ohms (kΩ) is 5700 Ω? =
35. 35.📏 How many watts (W) is 0.7 kW?
36. 36.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
37. 37.📏 How many kilo-ohms (kΩ) is 7100 Ω? =
38. 38.True or false: the ammeter is joined in series. (a) False (b) True
39. 39.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
40. 40.True or false: the flow of charge is measured in amperes (A). (a) False (b) True

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