Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 488 · 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.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water pressure (d) the water tank lid
2. 2.True or false: how much a part resists is measured in watts (W). (a) True (b) False
3. 3.True or false: voltage is measured in volts (V). (a) False (b) True
4. 4.Which of these is measured in volts (V)? (a) the push of a cell (b) power (c) energy used each second (d) how much a part resists
5. 5.True or false: the ammeter is joined across a part. (a) False (b) True
6. 6.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) the pipe colour
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
11. 11.True or false: the ammeter is joined in series. (a) False (b) True
12. 12.Which of these is measured in amperes (A)? (a) how much a part resists (b) power (c) the push of a cell (d) the flow of charge
13. 13.True or false: the ammeter measures current. (a) True (b) False
14. 14.True or false: power is measured in ohms (Ω). (a) True (b) False
15. 15.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) current (c) how much a part resists (d) voltage
16. 16.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
17. 17.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) voltage (d) the push of a cell
18. 18.📏 How many amperes (A) is 2060 mA? =
19. 19.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
20. 20.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
21. 21.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the water pressure (d) the flow of water
22. 22.📏 Which unit measures energy used each second? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
23. 23.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
24. 24.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) current (d) voltage
25. 25.True or false: energy used each second is measured in volts (V). (a) True (b) False
26. 26.True or false: the ammeter measures voltage. (a) True (b) False
27. 27.True or false: current is measured in amperes (A). (a) False (b) True
28. 28.📏 How many kilowatts (kW) is 550 W? =
29. 29.True or false: voltage is measured in watts (W). (a) False (b) True
30. 30.True or false: power is measured in watts (W). (a) False (b) True
31. 31.True or false: the push of a cell is measured in volts (V). (a) False (b) True
32. 32.True or false: the voltmeter is joined in series. (a) False (b) True
33. 33.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
34. 34.True or false: energy used each second is measured in amperes (A). (a) False (b) True
35. 35.📏 How many amperes (A) is 1670 mA? =
36. 36.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) the push of a cell (c) resistance (d) power
37. 37.📏 How many ohms (Ω) is 7.6 kΩ?
38. 38.📏 How many ohms (Ω) is 8.7 kΩ?
39. 39.📏 How many ohms (Ω) is 1.5 kΩ?
40. 40.True or false: the voltmeter measures current. (a) True (b) False

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