Lesson 3.5.1.1
3.5.1.1 Basics of electricity Quiz: AQA Physics, Unit 5
20 questions
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Lesson 3.5.1.1, Basics of electricity: 20 multiple choice questions for the AQA Physics (7408), Unit 5: Electricity, written with Revision Ninja.
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The 20 questions
-
Electric current is defined as:
- the charge per unit energy transferred
- the number of electrons passing a point per unit volume
- the energy transferred per unit charge
- the rate of flow of charge
-
Potential difference is defined as:
- the charge per unit time
- the work done per unit charge
- the energy transferred per unit time
- the force per unit charge
-
Resistance is defined as:
- the product of potential difference and current
- the ratio of current to potential difference
- the ratio of potential difference to current
- the charge passing per unit time
-
A current of 2.5 A flows for 40 s. What charge passes a point?
- 0.063 C
- 2.5 C
- 100 C
- 16 C
-
The electron charge is 1.6 x 10^-19 C. How many electrons pass a point each second when the current is 0.80 A?
- 1.3 x 10^19
- 8.0 x 10^19
- 2.0 x 10^-19
- 5.0 x 10^18
-
A cell does 60 J of work moving 5.0 C of charge through a circuit. What is the potential difference across the component?
- 600 V
- 2.4 V
- 12 V
- 17 V
-
A resistor has 6.0 V across it and a current of 0.25 A flowing. What is its resistance?
- 24 ohm
- 1.5 ohm
- 6.25 ohm
- 0.042 ohm
-
A current of 2.0 A flows for 5.0 minutes. How much charge passes?
- 600 C
- 10 C
- 0.40 C
- 150 C
-
A cell moves 0.50 C of charge around a circuit, doing 2.0 J of work. What is the potential difference across the component?
- 1.5 V
- 0.25 V
- 2.5 V
- 4.0 V
-
A resistor of 20 ohm carries a current of 0.30 A. What is the potential difference across it?
- 66.7 V
- 60 V
- 6.0 V
- 0.015 V
-
A current of 3.2 A flows in a wire. How many electrons pass a point each second? Take e = 1.6 x 10^-19 C.
- 3.2 x 10^19
- 2.0 x 10^19
- 2.0 x 10^-19
- 5.0 x 10^18
-
A component carries 0.25 mA when 1.5 V is applied across it. What is its resistance?
- 60 kohm
- 0.17 kohm
- 375 ohm
- 6.0 kohm
-
A charge of 0.20 C moves through a 9.0 V battery. What energy is transferred?
- 0.022 J
- 1.8 J
- 9.2 J
- 45 J
-
A current of 0.50 A flows for 2 minutes through a 10 ohm resistor. What energy is transferred to the resistor?
- 600 J
- 1500 J
- 30 J
- 300 J
-
A 3.0 V cell supplies a bulb with a steady 0.20 A for 30 minutes. What total energy does the cell supply?
- 1080 J
- 18 J
- 3.6 kJ
- 540 J
-
A student says current is used up as it passes through components in a circuit. Which response is best?
- Current is used up by the lamp but restored by the cell.
- Current is the same at every point in a series circuit, because charge is conserved and is not used up.
- Current decreases after each component because charge is used up as it flows.
- Current increases after passing through each resistor.
-
A 12 V supply drives a steady 4.0 A through a component for 30 s. What energy is transferred?
- 1440 J
- 120 J
- 360 J
- 2880 J
-
A steady current of 1.5 mA flows for 0.50 hour. What charge passes?
- 0.45 C
- 2.7 C
- 27 C
- 0.0027 C
-
A battery gives 1.5 J of energy per coulomb of charge. A current of 2.0 A flows for 60 s. What total energy is supplied?
- 30 J
- 120 J
- 180 J
- 0.8 J
-
A 240 V heater draws 0.50 A for 10 minutes. What energy does it transfer?
- 72 kJ
- 120 kJ
- 720 kJ
- 7.2 kJ
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