Electrical Circuits: Interactive Learning Quizzes for Year 4 Science

Question 1

Which of these is **NOT** used in a simple electrical circuit?

Accepted Answer

Key

Answer

Battery

Answer

Wire

Answer

Bulb

Question 2

What does a battery do in an electrical circuit?

Accepted Answer

Stores and provides electricity

Answer

Conducts electricity

Answer

Completes the circuit

Answer

Protects the circuit from damage

Question 3

Which of these materials can electricity pass through easily?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 4

What happens when you turn on a switch in a circuit?

Accepted Answer

The circuit is connected and electricity can flow

Answer

The circuit is disconnected and electricity stops flowing

Answer

The battery is recharged

Answer

The bulb burns out

Question 5

What do we measure electrical current in?

Accepted Answer

Amps

Answer

Volts

Answer

Ohms

Answer

Watts

Question 6

What is a fuse used for in an electrical circuit?

Accepted Answer

To protect the circuit from too much electricity

Answer

To store electricity

Answer

To complete the circuit

Answer

To control the voltage

Question 7

What happens if a wire in a circuit breaks?

Accepted Answer

The circuit will break and the electricity will stop flowing

Answer

The electricity will keep flowing

Answer

The circuit will be completed

Answer

The bulb will become dimmer

Question 8

Which of these materials allows electricity to pass through it easily?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 9

What part of an electrical circuit provides the energy to make the electricity flow?

Accepted Answer

Battery

Answer

Switch

Answer

Bulb

Answer

Wire

Question 10

What is the job of a fuse in an electrical circuit?

Accepted Answer

To stop the circuit from getting too hot and causing a fire

Answer

To decide which way the electricity flows

Answer

To keep the electricity flowing

Answer

To store the electricity

Question 11

Which type of circuit has a single path for the electricity to flow?

Accepted Answer

Series circuit

Answer

Parallel circuit

Answer

Mixed circuit

Answer

Open circuit

Question 12

Which of these is a good way to generate electricity without using fossil fuels?

Accepted Answer

Wind turbines

Answer

Gas-powered generators

Answer

Coal-fired power stations

Answer

Nuclear reactors

Question 13

Which material allows electricity to flow through it easily?

Accepted Answer

Copper

Answer

Wood

Answer

Glass

Answer

Rubber

Question 14

What happens when you turn off the switch in a circuit?

Accepted Answer

The circuit is broken.

Answer

The circuit is completed.

Answer

The current flows through the circuit.

Answer

The voltage increases.

Question 15

Which part of a circuit helps carry electricity?

Accepted Answer

Wire

Answer

Magnet

Answer

Lens

Answer

Spring

Question 16

What do we measure electric current in?

Accepted Answer

Amperes

Answer

Volts

Answer

Ohms

Answer

Watts

Question 17

Why do we put a special cover around the wires in a circuit?

Accepted Answer

To prevent electric shocks

Answer

To increase the flow of electricity

Answer

To reduce the resistance

Answer

To make the circuit more efficient

Question 18

Which of these can conduct electricity but also block some electricity?

Accepted Answer

Silicon

Answer

Copper

Answer

Gold

Answer

Plastic

Question 19

What is NOT used in an electrical circuit?

Accepted Answer

Toy car

Answer

Battery

Answer

Wire

Answer

Bulb

Question 20

What does the battery do in an electrical circuit?

Accepted Answer

Stores energy to make electricity flow

Answer

Lets electricity flow easily

Answer

Lights up the bulb

Answer

Turns the circuit on and off

Question 21

Which of these can conduct electricity well?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 22

What happens when you turn on the switch in a circuit?

Accepted Answer

The circuit is complete, allowing electricity to flow

Answer

The circuit is broken, stopping the flow of electricity

Answer

The battery starts to charge

Answer

The bulb turns on

Question 23

What is a good electrical safety rule to follow?

Accepted Answer

Only touch wires that are covered

Answer

Use a screwdriver to connect wires

Answer

Use a wet cloth to clean electrical parts

Answer

Connect wires to the battery when the switch is on

Question 24

What is the purpose of a fuse in an electrical circuit?

Accepted Answer

To protect the circuit from damage in case of a short circuit

Answer

To store electrical energy

Answer

To control the flow of electricity

Answer

To connect the wires to the battery

Question 25

What does a resistor do in an electrical circuit?

Accepted Answer

Controls the flow of electricity

Answer

Stores electrical energy

Answer

Lights up the bulb

Answer

Connects the wires to the battery

Question 26

Which of these materials can electricity flow through?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Question 27

Which of the following materials can conduct electricity?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 28

What is the main purpose of a battery in an electrical circuit?

Accepted Answer

To store electrical energy

Answer

To allow current to flow

Answer

To protect the circuit from damage

Answer

To light up bulbs

Question 29

Which of the following is NOT a common component of a simple electrical circuit?

Accepted Answer

Fan

Answer

Battery

Answer

Wire

Answer

Switch

Question 30

What happens when you close a switch in a circuit?

Accepted Answer

The current starts flowing

Answer

The battery stops working

Answer

The bulb turns on

Answer

The wires get hot

Question 31

Why does a light bulb light up when connected to a battery?

Accepted Answer

Because electrons move through the bulb

Answer

Because the battery gives energy to the bulb

Answer

Because the bulb becomes warm

Answer

Because the wires are connected

Question 32

What is the main difference between a closed circuit and an open circuit?

Accepted Answer

In a closed circuit, current flows; in an open circuit, it does not.

Answer

In an open circuit, current flows; in a closed circuit, it does not.

Answer

There is no difference between a closed circuit and an open circuit.

Answer

In a closed circuit, the voltage is higher; in an open circuit, it is lower.

Question 33

What is the SI unit of electrical current?

Accepted Answer

Ampere

Answer

Volt

Answer

Ohm

Answer

Watt

Question 34

Which material is used to make the wires in an electrical circuit?

Accepted Answer

Copper

Answer

Rubber

Answer

Plastic

Question 35

Which part is NOT needed in a simple electrical circuit?

Accepted Answer

Magnet

Answer

Wire

Answer

Battery

Answer

Light bulb

Question 36

Which material lets electricity pass through it easily?

Accepted Answer

Copper

Answer

Rubber

Answer

Plastic

Answer

Wood

Question 37

Which of these will NOT stop a circuit from working?

Accepted Answer

New battery

Answer

Loose wire

Answer

Broken wire

Answer

Broken light bulb

Question 38

What does a switch do in a circuit?

Accepted Answer

Lets you turn electricity on or off

Answer

Keeps electricity stored

Answer

Changes electricity into light

Answer

Protects the circuit

Question 39

What's the difference between a series circuit and a parallel circuit?

Accepted Answer

In a series circuit, current passes through each part one at a time, while in a parallel circuit it can pass through multiple parts at once.

Answer

In a parallel circuit, current passes through each part one at a time, while in a series circuit it can pass through multiple parts at once.

Answer

Series circuits are more efficient.

Answer

Parallel circuits are more efficient.

Question 40

What do we measure electrical current in?

Accepted Answer

Amps

Answer

Volts

Answer

Watts

Answer

Ohms

Question 41

Which of the following is NOT a component of a simple electrical circuit?

Accepted Answer

Magnet

Answer

Battery

Answer

Wire

Question 42

What is the role of a battery in an electrical circuit?

Accepted Answer

Provides electrical energy

Answer

Stores electrical energy

Answer

Converts electricity to light

Answer

Controls the flow of electricity

Question 43

What happens when you close a switch in a circuit?

Accepted Answer

The circuit is completed and electricity flows through it.

Answer

The circuit is broken and electricity stops flowing.

Answer

The direction of electricity flow changes.

Answer

The voltage in the circuit increases.

Question 44

Which of the following materials conducts electricity well?

Accepted Answer

Copper

Answer

Wood

Answer

Rubber

Answer

Plastic

Question 45

Which of the following is a safety rule when working with electricity?

Accepted Answer

Never touch exposed wires

Answer

Work in a dark room

Answer

Use a wet cloth to clean electrical equipment

Answer

Use metal tools to connect wires

Question 46

What is the function of a fuse in an electrical circuit?

Accepted Answer

To protect the circuit from damage caused by too much current

Answer

To increase the voltage in the circuit

Answer

To store electrical energy

Question 47

Which of these is NOT a component of a simple electrical circuit?

Accepted Answer

Magnet

Answer

Battery

Answer

Bulb

Answer

Wire

Question 48

What is the main purpose of a battery in an electrical circuit?

Accepted Answer

To provide electrical energy

Answer

To open and close the circuit

Answer

To conduct electricity

Answer

To light up a bulb

Question 49

Which material is NOT a good conductor of electricity?

Accepted Answer

Rubber

Answer

Silver

Answer

Gold

Answer

Copper

Question 50

What happens when a switch is closed in a circuit?

Accepted Answer

The circuit becomes complete, allowing electricity to flow.

Answer

The circuit becomes incomplete, stopping the flow of electricity.

Answer

The bulb lights up brighter.

Question 51

Which of these is a common problem in electrical circuits?

Accepted Answer

Loose connections

Answer

Full moon

Answer

Windy weather

Answer

Heavy rain

Question 52

What is the main purpose of a fuse in an electrical circuit?

Accepted Answer

To protect the circuit from damage caused by excessive current flow.

Answer

To make the circuit more efficient

Answer

To increase the brightness of the bulb

Question 53

What happens when a bulb burns out in a series circuit?

Accepted Answer

The entire circuit stops working.

Answer

The battery starts to discharge faster.

Answer

The fuse blows.

Answer

The other bulbs in the circuit become brighter.

Question 54

Which of these is a characteristic of a parallel circuit?

Accepted Answer

Each component has its own separate path for current flow.

Answer

The current flow is the same through all components.

Answer

The components are connected in a loop.

Question 55

What is the main difference between a series circuit and a parallel circuit?

Accepted Answer

In a series circuit, the components are connected in a single loop, while in a parallel circuit, the components have separate paths for current flow.

Answer

Series circuits are more efficient than parallel circuits.

Question 56

Which of these is an example of a real-world application of electrical circuits?

Accepted Answer

Home lighting

Answer

Photosynthesis

Answer

Bird migration

Answer

Plant growth