Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 129 · 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.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
2. 2.Which of these is measured in amperes (A)? (a) how much a part resists (b) power (c) resistance (d) current
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
4. 4.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
5. 5.📏 How many kilo-ohms (kΩ) is 300 Ω? =
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
7. 7.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
8. 8.📏 How many watts (W) is 1.9 kW?
9. 9.📏 How many kilowatts (kW) is 150 W? =
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
12. 12.📏 How many watts (W) is 0.5 kW?
13. 13.True or false: voltage is measured in amperes (A). (a) True (b) False
14. 14.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
15. 15.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
16. 16.Which of these is measured in ohms (Ω)? (a) resistance (b) current (c) voltage (d) the flow of charge
17. 17.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
18. 18.📏 How many milliamperes (mA) is 0.02 A?
19. 19.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) a bigger tank (d) the water pressure
20. 20.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
21. 21.📏 How many milliamperes (mA) is 1.07 A?
22. 22.True or false: resistance is measured in volts (V). (a) True (b) False
23. 23.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
24. 24.📏 How many kilo-ohms (kΩ) is 7000 Ω? =
25. 25.True or false: voltage is measured in volts (V). (a) False (b) True
26. 26.Which of these is measured in watts (W)? (a) energy used each second (b) the push of a cell (c) voltage (d) current
27. 27.📏 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
28. 28.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
29. 29.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
30. 30.True or false: current is measured in amperes (A). (a) False (b) True
31. 31.Which of these is measured in amperes (A)? (a) the flow of charge (b) voltage (c) power (d) resistance
32. 32.True or false: power is measured in watts (W). (a) True (b) False
33. 33.📏 How many ohms (Ω) is 4.3 kΩ?
34. 34.True or false: the ammeter measures current. (a) False (b) True
35. 35.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) voltage (d) current
36. 36.True or false: the voltmeter is joined in series. (a) False (b) True
37. 37.True or false: the push of a cell is measured in volts (V). (a) True (b) False
38. 38.True or false: the voltmeter measures voltage. (a) True (b) False
39. 39.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
40. 40.True or false: the flow of charge is measured in volts (V). (a) True (b) False

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