Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 762 · 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.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
2. 2.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
3. 3.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) the flow of charge (c) resistance (d) voltage
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
5. 5.📏 How many watts (W) is 3.1 kW?
6. 6.📏 How many watts (W) is 4 kW?
7. 7.📏 How many watts (W) is 1.8 kW?
8. 8.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) resistance (d) the push of a cell
9. 9.True or false: energy used each second is measured in volts (V). (a) True (b) False
10. 10.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
11. 11.Which of these is measured in watts (W)? (a) the flow of charge (b) voltage (c) power (d) resistance
12. 12.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
13. 13.📏 How many kilowatts (kW) is 2750 W? =
14. 14.📏 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
15. 15.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
16. 16.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
17. 17.📏 How many amperes (A) is 1200 mA? =
18. 18.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
19. 19.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) a bigger tank
20. 20.True or false: current is measured in volts (V). (a) True (b) False
21. 21.True or false: voltage is measured in ohms (Ω). (a) False (b) True
22. 22.📏 How many watts (W) is 0.2 kW?
23. 23.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
24. 24.Which of these is measured in ohms (Ω)? (a) energy used each second (b) voltage (c) how much a part resists (d) current
25. 25.📏 How many milliamperes (mA) is 0.13 A?
26. 26.📏 How many milliamperes (mA) is 2.3 A?
27. 27.📏 How many milliamperes (mA) is 0.52 A?
28. 28.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
29. 29.📏 How many watts (W) is 2.6 kW?
30. 30.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) the pipe colour (d) a narrow pipe
31. 31.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
32. 32.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
33. 33.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
34. 34.True or false: current is measured in watts (W). (a) True (b) False
35. 35.True or false: the push of a cell is measured in watts (W). (a) False (b) True
36. 36.📏 Which unit measures voltage? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
37. 37.Which of these is measured in amperes (A)? (a) voltage (b) power (c) resistance (d) the flow of charge
38. 38.True or false: energy used each second is measured in watts (W). (a) False (b) True
39. 39.Which of these is measured in amperes (A)? (a) energy used each second (b) voltage (c) the push of a cell (d) current
40. 40.True or false: current is measured in amperes (A). (a) True (b) False

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