Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 535 · 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 2450 W? =
2. 2.Which of these is measured in amperes (A)? (a) voltage (b) the push of a cell (c) power (d) current
3. 3.True or false: power is measured in volts (V). (a) True (b) False
4. 4.True or false: the flow of charge is measured in watts (W). (a) True (b) False
5. 5.📏 How many ohms (Ω) is 9.5 kΩ?
6. 6.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
8. 8.True or false: the push of a cell is measured in volts (V). (a) False (b) True
9. 9.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) energy used each second (d) the flow of charge
10. 10.True or false: the voltmeter measures voltage. (a) True (b) False
11. 11.True or false: current is measured in amperes (A). (a) False (b) True
12. 12.📏 How many ohms (Ω) is 8.2 kΩ?
13. 13.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) resistance (d) energy used each second
14. 14.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the water pressure (d) the tap handle
16. 16.True or false: voltage is measured in watts (W). (a) False (b) True
17. 17.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
18. 18.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) energy used each second (d) the push of a cell
19. 19.True or false: the voltmeter is joined in series. (a) True (b) False
20. 20.True or false: the voltmeter is joined across a part. (a) True (b) False
21. 21.True or false: the ammeter is joined in series. (a) False (b) True
22. 22.True or false: energy used each second is measured in volts (V). (a) True (b) False
23. 23.📏 How many kilowatts (kW) is 2750 W? =
24. 24.📏 How many kilo-ohms (kΩ) is 6400 Ω? =
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
26. 26.📏 How many milliamperes (mA) is 1.05 A?
27. 27.📏 How many kilo-ohms (kΩ) is 5800 Ω? =
28. 28.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
29. 29.📏 How many watts (W) is 0.1 kW?
30. 30.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
31. 31.📏 How many milliamperes (mA) is 1.85 A?
32. 32.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
33. 33.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) energy used each second (d) the flow of charge
34. 34.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
35. 35.📏 How many kilowatts (kW) is 3400 W? =
36. 36.📏 How many watts (W) is 3.6 kW?
37. 37.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
38. 38.True or false: the flow of charge is measured in volts (V). (a) True (b) False
39. 39.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
40. 40.📏 How many ohms (Ω) is 3 kΩ?

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