Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 619 · 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 voltage? (a) voltmeter (b) ammeter
2. 2.📏 How many amperes (A) is 330 mA? =
3. 3.True or false: how much a part resists is measured in volts (V). (a) True (b) False
4. 4.📏 How many milliamperes (mA) is 0.05 A?
5. 5.Which of these is measured in amperes (A)? (a) current (b) voltage (c) energy used each second (d) the push of a cell
6. 6.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) voltage (d) power
7. 7.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
8. 8.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
9. 9.True or false: the voltmeter measures voltage. (a) True (b) False
10. 10.Which of these is measured in watts (W)? (a) how much a part resists (b) voltage (c) the push of a cell (d) energy used each second
11. 11.📏 How many milliamperes (mA) is 1.39 A?
12. 12.True or false: the voltmeter is joined across a part. (a) True (b) False
13. 13.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
14. 14.📏 How many milliamperes (mA) is 2.33 A?
15. 15.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
16. 16.True or false: the push of a cell is measured in volts (V). (a) False (b) True
17. 17.📏 How many ohms (Ω) is 6.1 kΩ?
18. 18.Which of these is measured in volts (V)? (a) power (b) how much a part resists (c) voltage (d) resistance
19. 19.📏 How many amperes (A) is 2950 mA? =
20. 20.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
22. 22.📏 How many ohms (Ω) is 8.4 kΩ?
23. 23.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
24. 24.📏 How many kilo-ohms (kΩ) is 7000 Ω? =
25. 25.📏 How many kilowatts (kW) is 3850 W? =
26. 26.True or false: current is measured in amperes (A). (a) False (b) True
27. 27.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
28. 28.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the water pressure (d) the flow of water
29. 29.📏 How many ohms (Ω) is 7.3 kΩ?
30. 30.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the water pressure (d) the tap handle
31. 31.📏 How many milliamperes (mA) is 2.11 A?
32. 32.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the water pressure (d) the flow of water
33. 33.True or false: the voltmeter is joined in series. (a) False (b) True
34. 34.📏 How many ohms (Ω) is 2.8 kΩ?
35. 35.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) how much a part resists (d) current
36. 36.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
37. 37.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
38. 38.True or false: power is measured in watts (W). (a) False (b) True
39. 39.True or false: energy used each second is measured in watts (W). (a) False (b) True
40. 40.📏 How many kilo-ohms (kΩ) is 1800 Ω? =

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