Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 306 · 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: energy used each second is measured in ohms (Ω). (a) True (b) False
2. 2.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
4. 4.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
5. 5.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
6. 6.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
8. 8.Which of these is measured in volts (V)? (a) the push of a cell (b) current (c) resistance (d) how much a part resists
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
10. 10.Which of these is measured in ohms (Ω)? (a) power (b) the push of a cell (c) how much a part resists (d) the flow of charge
11. 11.True or false: power is measured in volts (V). (a) False (b) True
12. 12.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) the flow of charge (c) voltage (d) resistance
13. 13.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
14. 14.📏 How many milliamperes (mA) is 0.41 A?
15. 15.📏 How many watts (W) is 2.8 kW?
16. 16.📏 How many ohms (Ω) is 9.1 kΩ?
17. 17.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
18. 18.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) the flow of charge (d) the push of a cell
19. 19.True or false: the ammeter is joined in series. (a) False (b) True
20. 20.📏 How many kilowatts (kW) is 4650 W? =
21. 21.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 10 (d) 1000
22. 22.Which of these is measured in amperes (A)? (a) energy used each second (b) the push of a cell (c) resistance (d) the flow of charge
23. 23.True or false: resistance is measured in watts (W). (a) False (b) True
24. 24.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
25. 25.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
26. 26.📏 How many kilo-ohms (kΩ) is 9300 Ω? =
27. 27.True or false: the voltmeter measures voltage. (a) False (b) True
28. 28.True or false: the voltmeter measures current. (a) False (b) True
29. 29.True or false: the ammeter is joined across a part. (a) True (b) False
30. 30.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
31. 31.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
32. 32.📏 How many kilo-ohms (kΩ) is 2300 Ω? =
33. 33.📏 How many kilo-ohms (kΩ) is 2000 Ω? =
34. 34.📏 How many milliamperes (mA) is 0.34 A?
35. 35.True or false: the push of a cell is measured in volts (V). (a) False (b) True
36. 36.True or false: voltage is measured in amperes (A). (a) False (b) True
37. 37.📏 How many milliamperes (mA) is 1.19 A?
38. 38.True or false: the voltmeter is joined in series. (a) True (b) False
39. 39.True or false: the flow of charge is measured in volts (V). (a) True (b) False
40. 40.📏 How many watts (W) is 2.2 kW?

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