Electrical Systems: Learn about Circuits and Components for Kids

Question 1

Which material allows electricity to pass through it without difficulty?

Accepted Answer

Metal

Answer

Wood

Answer

Rubber

Answer

Plastic

Question 2

What material allows electricity to flow through it easily?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 3

When making a simple torch, what material should the wire connecting the battery and bulb be made of?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 4

Which of these materials cannot conduct electricity?

Accepted Answer

Plastic

Accepted Answer

Wood

Answer

Metal

Answer

Water

Question 5

Which material in an electrical circuit lets electricity pass through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Rubber

Answer

Glass

Question 6

Which material allows electricity to flow through it easily?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 7

Which of these materials lets electricity flow through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 8

In an electrical circuit, which part lets you turn the circuit on or off?

Accepted Answer

Switch

Answer

Battery

Answer

Bulb

Answer

Wire

Question 9

Which material allows electricity to pass through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 10

Which material allows electricity to flow through it easily?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 11

In a torch, which material allows electricity to travel to the bulb?

Accepted Answer

Metal wire

Answer

Plastic casing

Answer

Glass bulb

Question 12

Which material lets electricity pass through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Question 13

Which of these materials can you use to make a good electrical connection?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 14

In a simple electrical circuit, what actually flows through the circuit to make the bulb light up?

Accepted Answer

Electrons

Answer

Light

Answer

Heat

Answer

Sound

Question 15

What happens when you close the switch in a circuit?

Accepted Answer

The electricity starts flowing.

Answer

The electricity stops flowing.

Answer

The electricity changes direction.

Answer

The electricity gets brighter.

Question 16

Which of these items lets electricity flow through it easily?

Accepted Answer

A metal spoon

Answer

A wooden chair

Answer

A plastic cup

Question 17

Which material allows electricity to pass through it most easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 18

Which of these materials can electricity pass through easily?

Accepted Answer

Copper

Answer

Rubber

Answer

Plastic

Question 19

When making a simple electrical circuit, like a torch or a buzzer, which material is best to use?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Question 20

When you turn off a switch in a circuit, what happens to the electricity?

Accepted Answer

It stops flowing.

Answer

It changes direction.

Answer

It becomes stronger.

Question 21

What part of a battery stores the energy that makes it work?

Accepted Answer

The chemicals inside

Answer

The metal casing

Answer

The positive terminal

Answer

The negative terminal

Question 22

What is the purpose of switches in an electrical circuit?

Accepted Answer

To control the flow of electricity

Answer

To store electricity

Answer

To light up bulbs

Question 23

Which material allows electricity to flow through it most easily?

Accepted Answer

Metal

Answer

Wood

Answer

Cotton

Answer

Plastic

Question 24

Which material in an electrical circuit lets electricity flow through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 25

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

Accepted Answer

To store electricity

Answer

To generate heat

Answer

To control the flow of electricity

Answer

To produce light

Question 26

What is the main function of a switch in an electrical circuit?

Accepted Answer

To control the flow of electricity

Answer

To increase the voltage of electricity

Answer

To store electricity

Question 27

When designing an electrical circuit, why is it unsafe to use a metal spoon to connect the components?

Accepted Answer

Metal spoons are unsafe because they can conduct too much electricity and cause a shock.

Answer

Metal spoons are safe to use because they conduct electricity like wires.

Answer

Metal spoons are not suitable because they can rust.

Question 28

What material lets electricity pass through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 29

In a torch, what part gives the power to light up the bulb?

Accepted Answer

The battery

Answer

The bulb

Answer

The switch

Answer

The wires

Question 30

What flows through a complete electrical circuit to make devices work?

Accepted Answer

Electricity

Answer

Air

Answer

Water

Answer

Steam

Question 31

Which of these materials can electricity pass through?

Accepted Answer

Copper

Accepted Answer

Water

Answer

Wood

Answer

Plastic

Question 32

Which material can electricity pass through easily?

Accepted Answer

Copper

Answer

Rubber

Answer

Wood

Question 33

Which material lets electricity flow through it easily?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 34

Which of these materials is NOT a good conductor of electricity?

Accepted Answer

Plastic

Answer

Gold

Answer

Copper

Answer

Silver

Question 35

Which material allows electricity to flow through it easily?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 36

Which of these materials can easily allow electricity to flow through it?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 37

In an electrical circuit, if you increase the voltage, what happens to the current and resistance?

Accepted Answer

Current increases, resistance decreases

Answer

Current increases, resistance increases

Answer

Current decreases, resistance increases

Question 38

When did Benjamin Franklin discover that lightning was a type of electricity?

Accepted Answer

1752

Answer

1500

Answer

1800

Question 39

Who designs and fixes electrical systems, like the lights in our homes and the computers in our schools?

Accepted Answer

Electrical engineers

Answer

Scientists

Answer

Doctors

Answer

Teachers

Question 40

Which of these is NOT a way to make electricity from nature?

Accepted Answer

Coal

Answer

Solar power

Answer

Wind power

Answer

Hydroelectric power

Question 41

What is the main reason we use fuses or circuit breakers in electrical circuits?

Accepted Answer

To protect the circuit from damage caused by too much electricity.

Answer

To allow electricity to flow through the circuit.

Answer

To control the voltage in the circuit.

Answer

To store electrical energy.

Question 42

When using electricity, it's important to stay safe. Which of these is the best way to do that?

Accepted Answer

Check electrical cords for damage before using them.

Accepted Answer

Never touch a light switch with wet hands.

Answer

Use electrical appliances near water.

Question 43

When building an electrical circuit, which safety rule is the most important to follow?

Accepted Answer

Use insulated wires to prevent electric shocks.

Answer

Use metal wires because they conduct electricity better.

Answer

Ignore the voltage or compatibility of the components.

Answer

Avoid using electrical tape or other insulating materials.

Question 44

Which material prevents electricity from flowing in a circuit?

Accepted Answer

Insulators

Answer

Conductors

Answer

Resistors

Answer

Capacitors

Question 45

What is a switch and what does it do in an electrical circuit?

Accepted Answer

A switch is a device that lets electricity flow when turned on and stops the flow when turned off.

Answer

A switch stores electricity.

Answer

A switch creates electricity.

Answer

A switch measures electricity.

Question 46

Which of these is not a type of resistor?

Accepted Answer

Capacitor

Answer

Fixed resistor

Answer

Variable resistor

Answer

Light-dependent resistor (LDR)

Question 47

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

Accepted Answer

Screw

Answer

Battery

Answer

Wire

Answer

Switch

Question 48

What do batteries do in a circuit?

Accepted Answer

Store electrical energy

Answer

Control the flow of electricity

Answer

Convert electrical energy to light

Answer

Make electricity stronger

Question 49

Which of these materials is good at conducting electricity?

Accepted Answer

Copper

Answer

Plastic

Answer

Rubber

Answer

Wood

Question 50

What symbol represents a battery in an electrical circuit diagram?

Accepted Answer

| |_______________| |

Answer

| |

Answer

O

Answer

X

Question 51

Which tool is used to remove insulation from wires?

Accepted Answer

Wire strippers

Answer

Pliers

Answer

Screwdrivers

Answer

Hammer

Question 52

What unit do we use to measure electrical current?

Accepted Answer

Amps

Answer

Watts

Answer

Volts

Answer

Ohms

Question 53

How can you use a battery to power a circuit?

Accepted Answer

In either series or parallel

Answer

Only in series

Answer

Only in parallel

Answer

Not at all

Question 54

What material is used to coat electrical wires to stop people getting electric shocks?

Accepted Answer

Plastic

Answer

Paper

Answer

Metal

Answer

Wood

Question 55

Which material prevents electricity from flowing easily?

Accepted Answer

Plastic

Answer

Copper

Answer

Metal

Answer

Water

Question 56

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

Accepted Answer

To prevent electrical fires by stopping too much electricity

Answer

To allow electricity to flow through the circuit

Answer

To power the electrical device

Question 57

What is the symbol used to represent a battery in an electrical circuit diagram?

Accepted Answer

[]

Answer

{}

Answer

()

Answer

<>

Question 58

Which of these is NOT a necessary component of a basic electrical circuit?

Accepted Answer

Fan

Answer

Battery

Answer

Wire

Answer

Bulb

Question 59

Which of these materials acts as an insulator, preventing the flow of electricity?

Accepted Answer

Plastic

Answer

Copper

Answer

Aluminum

Answer

Iron

Question 60

What part of an electrical circuit is NOT necessary?

Accepted Answer

Plastic

Answer

Battery

Answer

Wire

Answer

Buzzer

Question 61

Which of these materials can conduct electricity?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 62

What happens when you connect a battery to a circuit?

Accepted Answer

Electricity flows through the circuit

Answer

Nothing

Answer

The battery explodes

Answer

The wires melt

Question 63

What is a switch used for in a circuit?

Accepted Answer

To open or close the circuit

Answer

To store electricity

Answer

To allow current to flow in one direction only

Answer

To make the circuit complete

Question 64

How do we measure electrical current?

Accepted Answer

Amperes

Answer

Volts

Answer

Ohms

Answer

Watts