Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 139 · 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 push of a cell is measured in volts (V). (a) False (b) True
2. 2.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
3. 3.Which of these is measured in amperes (A)? (a) the flow of charge (b) voltage (c) how much a part resists (d) power
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
5. 5.📏 How many amperes (A) is 1230 mA? =
6. 6.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
7. 7.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
8. 8.True or false: the ammeter measures current. (a) True (b) False
9. 9.True or false: the voltmeter measures voltage. (a) True (b) False
10. 10.Which of these is measured in watts (W)? (a) current (b) the push of a cell (c) the flow of charge (d) energy used each second
11. 11.📏 How many milliamperes (mA) is 0.58 A?
12. 12.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
13. 13.📏 How many kilowatts (kW) is 800 W? =
14. 14.True or false: power is measured in watts (W). (a) True (b) False
15. 15.📏 How many watts (W) is 4.1 kW?
16. 16.True or false: current is measured in volts (V). (a) True (b) False
17. 17.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water pressure (d) the water tank lid
18. 18.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
19. 19.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
20. 20.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
21. 21.Which of these is measured in watts (W)? (a) the flow of charge (b) how much a part resists (c) current (d) power
22. 22.📏 How many watts (W) is 0.8 kW?
23. 23.📏 How many milliamperes (mA) is 0.49 A?
24. 24.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) current (d) resistance
25. 25.📏 How many milliamperes (mA) is 2.11 A?
26. 26.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
27. 27.📏 How many kilowatts (kW) is 3350 W? =
28. 28.📏 How many amperes (A) is 2310 mA? =
29. 29.True or false: resistance is measured in ohms (Ω). (a) False (b) True
30. 30.📏 How many kilo-ohms (kΩ) is 6100 Ω? =
31. 31.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
32. 32.True or false: the ammeter measures voltage. (a) True (b) False
33. 33.📏 How many kilo-ohms (kΩ) is 3100 Ω? =
34. 34.📏 How many kilo-ohms (kΩ) is 9700 Ω? =
35. 35.Which of these is measured in volts (V)? (a) power (b) voltage (c) the flow of charge (d) how much a part resists
36. 36.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
37. 37.True or false: current is measured in amperes (A). (a) True (b) False
38. 38.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
39. 39.📏 How many kilo-ohms (kΩ) is 8800 Ω? =
40. 40.True or false: current is measured in watts (W). (a) False (b) True

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