Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 290 · 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 voltmeter measures voltage. (a) True (b) False
2. 2.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
3. 3.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
4. 4.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
5. 5.Which of these is measured in volts (V)? (a) current (b) power (c) voltage (d) the flow of charge
6. 6.📏 How many amperes (A) is 480 mA? =
7. 7.📏 How many kilowatts (kW) is 350 W? =
8. 8.📏 How many milliamperes (mA) is 2.79 A?
9. 9.📏 How many kilowatts (kW) is 4400 W? =
10. 10.True or false: power is measured in watts (W). (a) True (b) False
11. 11.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) power (d) current
12. 12.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
13. 13.True or false: the flow of charge is measured in volts (V). (a) False (b) True
14. 14.True or false: the ammeter is joined across a part. (a) True (b) False
15. 15.True or false: voltage is measured in volts (V). (a) False (b) True
16. 16.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
17. 17.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
18. 18.True or false: the voltmeter is joined across a part. (a) True (b) False
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 10 (d) 100
20. 20.📏 How many kilowatts (kW) is 950 W? =
21. 21.True or false: power is measured in ohms (Ω). (a) True (b) False
22. 22.True or false: power is measured in volts (V). (a) False (b) True
23. 23.📏 How many kilo-ohms (kΩ) is 3200 Ω? =
24. 24.Which of these is measured in ohms (Ω)? (a) power (b) how much a part resists (c) current (d) energy used each second
25. 25.📏 How many ohms (Ω) is 6.1 kΩ?
26. 26.True or false: the ammeter measures current. (a) False (b) True
27. 27.📏 How many kilo-ohms (kΩ) is 4500 Ω? =
28. 28.Which of these is measured in volts (V)? (a) current (b) resistance (c) how much a part resists (d) the push of a cell
29. 29.📏 How many milliamperes (mA) is 2.11 A?
30. 30.📏 How many amperes (A) is 1420 mA? =
31. 31.📏 How many ohms (Ω) is 2.1 kΩ?
32. 32.Which of these is measured in watts (W)? (a) power (b) the push of a cell (c) how much a part resists (d) current
33. 33.Which of these is measured in amperes (A)? (a) voltage (b) the flow of charge (c) how much a part resists (d) resistance
34. 34.Which of these is measured in watts (W)? (a) current (b) voltage (c) the push of a cell (d) energy used each second
35. 35.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the pipe colour (d) the water pressure
36. 36.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) current (d) resistance
37. 37.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
38. 38.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
39. 39.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
40. 40.📏 How many watts (W) is 1.1 kW?

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