Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 256 · 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.Which of these is measured in ohms (Ω)? (a) power (b) resistance (c) the flow of charge (d) the push of a cell
2. 2.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
3. 3.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
6. 6.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
7. 7.True or false: power is measured in watts (W). (a) True (b) False
8. 8.📏 How many milliamperes (mA) is 2.11 A?
9. 9.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
10. 10.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) energy used each second (d) voltage
11. 11.Which of these is measured in amperes (A)? (a) current (b) voltage (c) energy used each second (d) resistance
12. 12.Which of these is measured in ohms (Ω)? (a) current (b) energy used each second (c) the push of a cell (d) how much a part resists
13. 13.True or false: the ammeter is joined across a part. (a) False (b) True
14. 14.Which of these is measured in volts (V)? (a) power (b) the push of a cell (c) how much a part resists (d) the flow of charge
15. 15.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
16. 16.True or false: the ammeter is joined in series. (a) True (b) False
17. 17.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
18. 18.True or false: the voltmeter measures current. (a) False (b) True
19. 19.📏 How many amperes (A) is 2230 mA? =
20. 20.📏 How many kilowatts (kW) is 2850 W? =
21. 21.True or false: resistance is measured in ohms (Ω). (a) True (b) False
22. 22.📏 How many kilo-ohms (kΩ) is 4600 Ω? =
23. 23.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 60 (d) 100
24. 24.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
25. 25.📏 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
26. 26.📏 How many amperes (A) is 760 mA? =
27. 27.📏 How many kilo-ohms (kΩ) is 8800 Ω? =
28. 28.True or false: voltage is measured in volts (V). (a) False (b) True
29. 29.True or false: voltage is measured in ohms (Ω). (a) True (b) False
30. 30.📏 How many amperes (A) is 2790 mA? =
31. 31.Which of these is measured in amperes (A)? (a) voltage (b) energy used each second (c) the flow of charge (d) how much a part resists
32. 32.True or false: the ammeter measures voltage. (a) True (b) False
33. 33.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
34. 34.True or false: current is measured in amperes (A). (a) True (b) False
35. 35.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
36. 36.📏 How many watts (W) is 3.4 kW?
37. 37.📏 How many kilo-ohms (kΩ) is 5000 Ω? =
38. 38.📏 How many watts (W) is 0.5 kW?
39. 39.📏 How many amperes (A) is 1120 mA? =
40. 40.True or false: the voltmeter is joined in series. (a) False (b) True

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