Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 562 · 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 flow of charge is measured in ohms (Ω). (a) True (b) False
2. 2.Which of these is measured in watts (W)? (a) voltage (b) the flow of charge (c) energy used each second (d) how much a part resists
3. 3.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
4. 4.📏 Which unit measures current? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
5. 5.True or false: the ammeter is joined across a part. (a) True (b) False
6. 6.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
7. 7.True or false: the ammeter measures voltage. (a) False (b) True
8. 8.True or false: current is measured in ohms (Ω). (a) False (b) True
9. 9.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
10. 10.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) resistance (d) energy used each second
11. 11.True or false: voltage is measured in amperes (A). (a) True (b) False
12. 12.True or false: the ammeter is joined in series. (a) True (b) False
13. 13.Which of these is measured in amperes (A)? (a) the push of a cell (b) resistance (c) power (d) current
14. 14.📏 How many amperes (A) is 220 mA? =
15. 15.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
16. 16.📏 How many watts (W) is 2.3 kW?
17. 17.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
18. 18.Which of these is measured in watts (W)? (a) power (b) the push of a cell (c) resistance (d) how much a part resists
19. 19.True or false: power is measured in watts (W). (a) True (b) False
20. 20.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
21. 21.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
22. 22.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
24. 24.📏 How many ohms (Ω) is 1.7 kΩ?
25. 25.True or false: how much a part resists is measured in volts (V). (a) False (b) True
26. 26.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
27. 27.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
28. 28.True or false: the push of a cell is measured in volts (V). (a) False (b) True
29. 29.📏 How many milliamperes (mA) is 2.84 A?
30. 30.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
31. 31.Which of these is measured in amperes (A)? (a) the push of a cell (b) resistance (c) the flow of charge (d) voltage
32. 32.Which of these is measured in ohms (Ω)? (a) power (b) voltage (c) how much a part resists (d) energy used each second
33. 33.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) the flow of water (d) a narrow pipe
34. 34.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 10 (d) 100
35. 35.True or false: the flow of charge is measured in watts (W). (a) True (b) False
36. 36.📏 How many kilo-ohms (kΩ) is 4100 Ω? =
37. 37.Which of these is measured in volts (V)? (a) power (b) energy used each second (c) voltage (d) current
38. 38.📏 How many watts (W) is 3.7 kW?
39. 39.True or false: voltage is measured in volts (V). (a) False (b) True
40. 40.📏 How many kilo-ohms (kΩ) is 7500 Ω? =

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