Electronics Worksheet: Voltage, Current and Resistance
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.
NameDateTime takenScore ___ / 40
- 1.True or false: the voltmeter is joined in series. (a) False (b) True
- 2.Which of these is measured in volts (V)? (a) the flow of charge (b) the push of a cell (c) power (d) how much a part resists
- 3.True or false: the push of a cell is measured in volts (V). (a) False (b) True
- 4.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
- 5.📏 How many kilowatts (kW) is 650 W? =
- 6.Which of these is measured in amperes (A)? (a) voltage (b) energy used each second (c) the flow of charge (d) the push of a cell
- 7.📏 How many milliamperes (mA) is 2.88 A?
- 8.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
- 9.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
- 10.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
- 11.True or false: the ammeter is joined across a part. (a) True (b) False
- 12.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
- 13.Which of these is measured in watts (W)? (a) current (b) the push of a cell (c) resistance (d) energy used each second
- 14.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
- 15.True or false: the push of a cell is measured in watts (W). (a) False (b) True
- 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
- 17.📏 How many amperes (A) is 1430 mA? =
- 18.📏 How many kilowatts (kW) is 1400 W? =
- 19.True or false: resistance is measured in volts (V). (a) False (b) True
- 20.📏 How many kilowatts (kW) is 1250 W? =
- 21.📏 How many kilowatts (kW) is 4050 W? =
- 22.📏 How many milliamperes (mA) is 0.43 A?
- 23.True or false: the ammeter is joined in series. (a) False (b) True
- 24.📏 How many ohms (Ω) is 0.1 kΩ?
- 25.True or false: the voltmeter measures voltage. (a) False (b) True
- 26.📏 How many kilowatts (kW) is 100 W? =
- 27.📏 How many ohms (Ω) is 9.8 kΩ?
- 28.True or false: the voltmeter measures current. (a) False (b) True
- 29.True or false: the ammeter measures voltage. (a) False (b) True
- 30.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) energy used each second (d) current
- 31.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) current (d) resistance
- 32.📏 How many ohms (Ω) is 6.1 kΩ?
- 33.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
- 34.📏 How many milliamperes (mA) is 2.22 A?
- 35.📏 How many amperes (A) is 80 mA? =
- 36.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
- 37.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
- 38.True or false: the flow of charge is measured in watts (W). (a) True (b) False
- 39.True or false: the voltmeter is joined across a part. (a) False (b) True
- 40.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) how much a part resists (d) current
Answer key
- False
- the push of a cell
- True
- volt (V)
- 0.65
- the flow of charge
- 2880
- watt (W)
- ohm (Ω)
- False
- False
- ampere (A)
- energy used each second
- watt (W)
- False
- voltmeter
- 1.43
- 1.4
- False
- 1.25
- 4.05
- 430
- True
- 100
- True
- 0.1
- 9800
- False
- False
- voltage
- resistance
- 6100
- ammeter
- 2220
- 0.08
- voltmeter
- volt (V)
- False
- True
- current
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