Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 829 · 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: how much a part resists is measured in volts (V). (a) True (b) False
2. 2.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) the flow of charge (d) resistance
3. 3.📏 How many kilo-ohms (kΩ) is 8800 Ω? =
4. 4.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
5. 5.True or false: the ammeter measures current. (a) False (b) True
6. 6.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) the push of a cell (d) voltage
7. 7.True or false: the voltmeter is joined in series. (a) True (b) False
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
9. 9.True or false: energy used each second is measured in watts (W). (a) True (b) False
10. 10.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) the push of a cell (d) power
11. 11.True or false: power is measured in watts (W). (a) True (b) False
12. 12.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
13. 13.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) power (d) voltage
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) the pipe colour
15. 15.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
16. 16.True or false: the voltmeter measures current. (a) False (b) True
17. 17.📏 How many watts (W) is 1.1 kW?
18. 18.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the pipe colour (d) the water tank lid
19. 19.📏 How many amperes (A) is 910 mA? =
20. 20.True or false: voltage is measured in ohms (Ω). (a) False (b) True
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
22. 22.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
23. 23.True or false: the ammeter is joined across a part. (a) True (b) False
24. 24.True or false: the ammeter measures voltage. (a) True (b) False
25. 25.📏 How many kilo-ohms (kΩ) is 6200 Ω? =
26. 26.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
27. 27.📏 How many milliamperes (mA) is 2.78 A?
28. 28.📏 How many watts (W) is 0.8 kW?
29. 29.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
30. 30.📏 How many ohms (Ω) is 5.5 kΩ?
31. 31.📏 How many amperes (A) is 2180 mA? =
32. 32.📏 How many milliamperes (mA) is 0.17 A?
33. 33.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) the push of a cell (c) how much a part resists (d) voltage
34. 34.📏 How many watts (W) is 1.8 kW?
35. 35.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
36. 36.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
37. 37.Which of these is measured in volts (V)? (a) energy used each second (b) power (c) the flow of charge (d) the push of a cell
38. 38.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) a bigger tank
39. 39.📏 How many kilowatts (kW) is 3200 W? =
40. 40.True or false: the ammeter is joined in series. (a) False (b) True

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