Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 247 · 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.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
2. 2.📏 How many watts (W) is 2.8 kW?
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
4. 4.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the pipe colour (d) the water pressure
5. 5.True or false: the voltmeter is joined across a part. (a) False (b) True
6. 6.📏 How many amperes (A) is 320 mA? =
7. 7.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) energy used each second (c) the flow of charge (d) how much a part resists
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
9. 9.Which of these is measured in watts (W)? (a) current (b) power (c) how much a part resists (d) resistance
10. 10.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
11. 11.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
12. 12.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) the flow of water (d) a narrow pipe
13. 13.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) the pipe colour
14. 14.📏 How many milliamperes (mA) is 1.19 A?
15. 15.📏 How many amperes (A) is 870 mA? =
16. 16.True or false: the voltmeter measures voltage. (a) False (b) True
17. 17.Which of these is measured in amperes (A)? (a) resistance (b) energy used each second (c) current (d) voltage
18. 18.True or false: the ammeter is joined across a part. (a) False (b) True
19. 19.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) voltage (d) resistance
20. 20.Which of these is measured in amperes (A)? (a) the flow of charge (b) energy used each second (c) the push of a cell (d) how much a part resists
21. 21.📏 How many kilowatts (kW) is 1800 W? =
22. 22.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
23. 23.True or false: the ammeter is joined in series. (a) True (b) False
24. 24.True or false: the voltmeter measures current. (a) True (b) False
25. 25.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
26. 26.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
27. 27.True or false: the voltmeter is joined in series. (a) False (b) True
28. 28.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
29. 29.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
30. 30.📏 How many kilo-ohms (kΩ) is 900 Ω? =
31. 31.True or false: power is measured in amperes (A). (a) True (b) False
32. 32.Which of these is measured in volts (V)? (a) power (b) the flow of charge (c) the push of a cell (d) current
33. 33.📏 How many ohms (Ω) is 8.6 kΩ?
34. 34.Which of these is measured in volts (V)? (a) current (b) voltage (c) power (d) how much a part resists
35. 35.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
36. 36.True or false: power is measured in watts (W). (a) False (b) True
37. 37.True or false: the flow of charge is measured in watts (W). (a) False (b) True
38. 38.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) energy used each second (d) the flow of charge
39. 39.True or false: energy used each second is measured in watts (W). (a) True (b) False
40. 40.📏 How many kilo-ohms (kΩ) is 3400 Ω? =

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