Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 239 · 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 ohms (Ω). (a) False (b) True
2. 2.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
3. 3.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the water pressure (d) the flow of water
4. 4.📏 How many amperes (A) is 50 mA? =
5. 5.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
7. 7.True or false: current is measured in volts (V). (a) False (b) True
8. 8.📏 How many kilo-ohms (kΩ) is 9900 Ω? =
9. 9.Which of these is measured in watts (W)? (a) current (b) resistance (c) power (d) how much a part resists
10. 10.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
11. 11.📏 How many milliamperes (mA) is 0.22 A?
12. 12.True or false: voltage is measured in watts (W). (a) True (b) False
13. 13.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
14. 14.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
15. 15.📏 How many ohms (Ω) is 10 kΩ?
16. 16.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
17. 17.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
18. 18.True or false: voltage is measured in volts (V). (a) False (b) True
19. 19.True or false: the flow of charge is measured in watts (W). (a) False (b) True
20. 20.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
21. 21.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
22. 22.True or false: the voltmeter is joined across a part. (a) False (b) True
23. 23.📏 How many amperes (A) is 930 mA? =
24. 24.📏 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
25. 25.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) the push of a cell (d) energy used each second
26. 26.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 100 (d) 10
27. 27.📏 How many milliamperes (mA) is 0.75 A?
28. 28.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
29. 29.True or false: the voltmeter measures voltage. (a) False (b) True
30. 30.True or false: voltage is measured in amperes (A). (a) False (b) True
31. 31.📏 How many milliamperes (mA) is 1.06 A?
32. 32.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
33. 33.True or false: how much a part resists is measured in volts (V). (a) False (b) True
34. 34.📏 How many kilo-ohms (kΩ) is 5500 Ω? =
35. 35.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) how much a part resists (d) the flow of charge
36. 36.True or false: the ammeter measures voltage. (a) True (b) False
37. 37.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
38. 38.📏 How many amperes (A) is 110 mA? =
39. 39.Which of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) the push of a cell (d) energy used each second
40. 40.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank

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