Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 215 · 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) ampere (A) (c) watt (W) (d) volt (V)
2. 2.True or false: energy used each second is measured in volts (V). (a) True (b) False
3. 3.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) current (d) power
4. 4.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
5. 5.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
7. 7.Which of these is measured in volts (V)? (a) energy used each second (b) voltage (c) how much a part resists (d) the flow of charge
8. 8.True or false: the voltmeter measures voltage. (a) False (b) True
9. 9.📏 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
10. 10.True or false: voltage is measured in amperes (A). (a) False (b) True
11. 11.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) current (d) how much a part resists
12. 12.📏 How many kilowatts (kW) is 1400 W? =
13. 13.True or false: the voltmeter is joined in series. (a) True (b) False
14. 14.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 10 (d) 100
15. 15.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) how much a part resists (d) energy used each second
16. 16.Which of these is measured in volts (V)? (a) how much a part resists (b) energy used each second (c) the push of a cell (d) power
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
18. 18.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
19. 19.True or false: the ammeter measures voltage. (a) True (b) False
20. 20.📏 How many kilowatts (kW) is 2900 W? =
21. 21.True or false: the voltmeter is joined across a part. (a) False (b) True
22. 22.True or false: current is measured in amperes (A). (a) True (b) False
23. 23.📏 How many milliamperes (mA) is 0.11 A?
24. 24.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
25. 25.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) energy used each second (d) how much a part resists
26. 26.📏 How many kilo-ohms (kΩ) is 7300 Ω? =
27. 27.📏 How many kilo-ohms (kΩ) is 3500 Ω? =
28. 28.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
29. 29.📏 How many ohms (Ω) is 3.4 kΩ?
30. 30.True or false: current is measured in volts (V). (a) True (b) False
31. 31.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
32. 32.📏 How many amperes (A) is 320 mA? =
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
34. 34.📏 How many kilowatts (kW) is 1250 W? =
35. 35.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) the flow of charge (d) voltage
36. 36.True or false: power is measured in amperes (A). (a) True (b) False
37. 37.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
38. 38.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
39. 39.📏 How many kilo-ohms (kΩ) is 700 Ω? =
40. 40.True or false: the ammeter is joined across a part. (a) True (b) False

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