# AQA GCSE Physics Unit 2.4

Quiz by Matthew T, updated more than 1 year ago
 Created by Matthew T almost 6 years ago
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### Description

Twenty questions on the fourth section of Unit 2 in AQA GCSE Physics: Current electricity.

## Resource summary

### Question 1

Question
Which generator is used to generate high potential differences using static electricity?
• Van der Waals generator
• Van der Graaff generator
• Van Gogh generator

### Question 2

Question
What makes a Perspex rod become positively charged?
• Gain of electrons
• Loss of electrons

### Question 3

Question
What makes a polythene rod become negatively charged?
• Gain of electrons
• Loss of electrons

### Question 4

Question
What is this the circuit symbol for?
• Indicator
• Diode
• Cell
• Light-emitting diode

### Question 5

Question
What is this the circuit symbol for?
• Heater
• Fixed resistor
• Fuse
• Variable resistor

### Question 6

Question
True or false? Current can be defined as the rate of the flow of charge (coulombs per second).
• True
• False

### Question 7

Question
True or false? Potential difference can be defined as the work done by each unit of charge (joules per coulomb).
• True
• False

### Question 8

Question
What is the SI unit of resistance?
• Tesla
• Lux
• Ampere
• Ohm
• Volt
• Coulomb

### Question 9

Question
True or false? The equation connecting current, resistance and potential difference is R = VI.
• True
• False

### Question 10

Question
What is an ohmic conductor?
• A special type of conductor developed by Georg Ohm
• An electrical component whose current and potential difference are directly proportional at a constant resistance and temperature
• A conductor whose resistance is greater than 100 ohms

### Question 11

Question
For which electrical component would this current-potential difference graph apply?
• Thermistor
• Light-dependent resistor
• Filament bulb
• Diode

### Question 12

Question
For which electrical component would this current-potential difference graph apply?
• Thermistor
• Light-dependent resistor
• Filament bulb
• Diode

### Question 13

Question
True or false? The resistance of a thermistor decreases as temperature increases.
• True
• False

### Question 14

Question
True or false? The resistance of a light-dependent resistor increases as light intensity increases.
• True
• False

### Question 15

Question
True or false? In a series circuit, the same current passes through all components.
• True
• False

### Question 16

Question
True or false? In a series circuit, the potential difference across each component is the same.
• True
• False

### Question 17

Question
If there were two resistors in series, each with a resistance of 0.6Ω, what would be the total resistance?
• 0.6Ω
• 1.2Ω
• 12Ω

### Question 18

Question
True or false? In a parallel circuit, the total current is shared through the components.
• True
• False

### Question 19

Question
True or false? In a parallel circuit, the potential difference is shared across the components.
• True
• False

### Question 20

Question
If there were two resistors in parallel, each with a resistance of 0.6Ω, what would be the resistance in any one "loop" of the circuit?
• 0.6Ω
• 1.2Ω
• 12Ω

### Similar

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