Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 515 · 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.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 How many amperes (A) is 610 mA? =
4. 4.📏 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
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
7. 7.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
9. 9.Which of these is measured in volts (V)? (a) energy used each second (b) resistance (c) current (d) voltage
10. 10.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
11. 11.True or false: current is measured in ohms (Ω). (a) False (b) True
12. 12.True or false: energy used each second is measured in volts (V). (a) False (b) True
13. 13.📏 How many amperes (A) is 30 mA? =
14. 14.📏 How many kilowatts (kW) is 750 W? =
15. 15.True or false: the ammeter is joined across a part. (a) False (b) True
16. 16.Which of these is measured in amperes (A)? (a) how much a part resists (b) current (c) the push of a cell (d) energy used each second
17. 17.📏 How many kilowatts (kW) is 800 W? =
18. 18.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
19. 19.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
20. 20.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
21. 21.📏 How many ohms (Ω) is 1.9 kΩ?
22. 22.📏 How many ohms (Ω) is 7.9 kΩ?
23. 23.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) a narrow pipe (d) the flow of water
24. 24.Which of these is measured in watts (W)? (a) voltage (b) energy used each second (c) the flow of charge (d) resistance
25. 25.📏 How many ohms (Ω) is 5.1 kΩ?
26. 26.Which of these is measured in ohms (Ω)? (a) current (b) the flow of charge (c) how much a part resists (d) the push of a cell
27. 27.True or false: energy used each second is measured in watts (W). (a) True (b) False
28. 28.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) power (c) current (d) resistance
29. 29.True or false: the ammeter measures voltage. (a) False (b) True
30. 30.📏 How many milliamperes (mA) is 0.6 A?
31. 31.Which of these is measured in volts (V)? (a) energy used each second (b) the push of a cell (c) resistance (d) how much a part resists
32. 32.📏 How many amperes (A) is 180 mA? =
33. 33.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
34. 34.📏 How many milliamperes (mA) is 0.58 A?
35. 35.True or false: the voltmeter measures voltage. (a) False (b) True
36. 36.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
37. 37.True or false: the voltmeter is joined in series. (a) True (b) False
38. 38.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
39. 39.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
40. 40.📏 How many kilo-ohms (kΩ) is 3400 Ω? =

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