Electrical Systems: Circuits, Conductors, and Insulators for Year 6

Question 1

Which material conducts electricity well?

Accepted Answer

Copper

Answer

Rubber

Answer

Wood

Answer

Plastic

Question 2

When working with electricity, which of these is NOT a danger to look out for?

Accepted Answer

Falling over

Answer

Getting an electric shock

Answer

Starting a fire

Answer

Getting burned

Question 3

Which property allows electricity to pass through a material?

Accepted Answer

Conductivity

Answer

Transparency

Answer

Hardness

Answer

Color

Question 4

In a series circuit, when you add more components, what happens to the total resistance?

Accepted Answer

Increases

Answer

Decreases

Answer

Stays the same

Answer

Doubles

Question 5

Which of these materials would be the best conductor of electricity in an electrical circuit?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 6

Which of these materials can electricity pass through?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 7

In an electrical circuit, which part controls how much electricity flows through it?

Accepted Answer

Resistor

Answer

Battery

Answer

Switch

Answer

Wire

Question 8

Which of these materials can electricity flow through easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 9

In a parallel circuit, how does the total current compare to the currents in the different branches?

Accepted Answer

The total current is equal to the sum of the currents in the individual branches.

Answer

The total current is less than the current in the largest branch.

Answer

The total current is greater than the current in the smallest branch.

Answer

The total current is equal to the current in the smallest branch.

Question 10

In an electrical circuit, what is the main purpose of an insulator?

Accepted Answer

To keep people safe from electric shocks

Answer

To let electricity flow through it

Answer

To store electricity

Answer

To join different parts of a circuit

Question 11

Which of these is NOT a type of electrical circuit?

Accepted Answer

Open circuit

Answer

Series circuit

Answer

Parallel circuit

Answer

Closed circuit

Question 12

Which of these materials does NOT let electricity pass through it easily?

Accepted Answer

Plastic

Accepted Answer

Wood

Answer

Metal

Answer

Water

Question 13

In a simple electrical circuit, which of these is NOT used?

Accepted Answer

Magnet

Answer

Battery

Answer

Wire

Answer

Bulb

Question 14

Which of these materials can electricity easily flow through?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 15

Which of these is NOT a danger of working with electricity?

Accepted Answer

Powering your toys

Answer

Getting an electric shock

Answer

Causing a fire

Answer

Getting burned

Question 16

What makes an electrical circuit closed?

Accepted Answer

A complete loop that allows electricity to flow.

Answer

A path with a light bulb.

Answer

A path with a break in the middle.

Question 17

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

Accepted Answer

Plastic

Answer

Copper

Answer

Silver

Answer

Gold

Question 18

Which material allows electricity to flow through it easily?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 19

How do series and parallel circuits differ in the way current flows through them?

Accepted Answer

In a series circuit, current flows through components one after the other, while in a parallel circuit, current can flow through multiple components at once.

Answer

Series circuits have higher voltage than parallel circuits.

Answer

Parallel circuits are more efficient than series circuits.

Answer

Series circuits are used for high-power applications, while parallel circuits are used for low-power applications.

Question 20

Which of these materials can electricity pass through easily?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Question 21

Which material is the best conductor of electricity?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 22

You have two wires made of different materials. One wire is a good conductor of electricity, while the other is a poor conductor. How can you experimentally determine which wire is which?

Accepted Answer

Connect the wires to a battery and see if a light bulb lights up.

Answer

Bend the wires and see how flexible they are.

Answer

Measure the length of the wires.

Answer

Weigh the wires.

Question 23

What's the main purpose of an electrical circuit?

Accepted Answer

To let electricity flow

Answer

To store electricity

Answer

To produce light

Question 24

When building an electrical system, which of these common problems might you face?

Accepted Answer

Short circuits

Accepted Answer

Open circuits

Accepted Answer

Overloading

Question 25

In a circuit diagram, which symbol stands for the part that controls the flow of electricity?

Accepted Answer

Switch

Answer

Resistor

Answer

Capacitor

Answer

Battery

Question 26

Which electrical component allows electricity to flow in only one direction?

Accepted Answer

Diode

Answer

Resistor

Answer

Transistor

Answer

Capacitor

Question 27

What part of an electrical circuit allows you to control the flow of electricity?

Accepted Answer

Switch

Answer

Battery

Answer

Resistor

Answer

Wire

Question 28

What's the main reason for using an electrical fuse in a circuit?

Accepted Answer

To protect the circuit from damage caused by too much electricity

Answer

To regulate the flow of electricity

Answer

To connect the circuit and let electricity flow

Answer

To store electricity for later use

Question 29

Which component is NOT part of an electrical circuit?

Accepted Answer

Magnet

Answer

Battery

Answer

Wire

Answer

Switch

Question 30

How can you check if an electrical system is working correctly?

Accepted Answer

Use a multimeter to measure voltage and current

Accepted Answer

Connect it to a known working power source and observe its behavior

Answer

Guess and hope for the best

Answer

Use a magic wand to make it work

Question 31

In a simple series circuit, which component is connected at the end?

Accepted Answer

Light bulb

Answer

Battery

Answer

Switch

Answer

Resistor

Question 32

In electrical circuit design, why is selecting the right components crucial?

Accepted Answer

To ensure the circuit operates as planned.

Answer

To enhance the circuit's appearance.

Answer

To reduce the circuit's overall cost.

Question 33

What unit is used to measure the flow of electricity in a circuit?

Accepted Answer

Amperes

Answer

Volts

Answer

Ohms

Question 34

Which material allows electricity to flow through it easily?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 35

What's the main reason we use a battery in an electrical circuit?

Accepted Answer

To store electricity

Answer

To control the flow of electricity

Answer

To measure the electricity flowing

Answer

To keep the circuit safe

Question 36

Your electrical circuit isn't working. What steps would you take to find and fix the problem?

Accepted Answer

Check the battery or power supply to make sure it's working.

Accepted Answer

Look for any loose wires or broken connections.

Accepted Answer

Use a multimeter to check the voltage and current at different parts of the circuit.

Answer

Replace all the parts in the circuit, even if they look okay.

Question 37

What is the main purpose of insulators in electrical circuits?

Accepted Answer

To prevent electricity from flowing outside the circuit, ensuring safety.

Answer

To connect different parts of the circuit.

Answer

To conduct electricity efficiently.

Answer

Insulators are not necessary in electrical circuits.

Question 38

In electrical systems, different materials have unique properties that impact the flow of electricity. Which statement accurately describes the roles of insulators and conductors?

Accepted Answer

Conductors allow electricity to flow easily, while insulators block its flow.

Answer

Insulators allow electricity to flow easily, while conductors block its flow.

Answer

Insulators and conductors both allow electricity to flow, but insulators have higher resistance.

Answer

Insulators and conductors both block electricity, but conductors have lower resistance.

Question 39

Why are insulators crucial in electrical circuits?

Accepted Answer

Prevent electric shocks

Answer

Enhance electricity flow

Answer

Conserve energy

Answer

Lower circuit resistance

Question 40

Which part of an electrical circuit lets you turn it on or off, controlling the flow of electricity?

Accepted Answer

Switch

Answer

Battery

Answer

Light bulb

Question 41

Transistors are tiny electronic components found in many modern devices. They act like switches, controlling the flow of electricity in one direction only. Why are transistors important?

Accepted Answer

They can amplify signals, making them essential for many electronic applications.

Answer

They generate electricity, making them important as power sources in electronic devices.

Answer

They store electrical energy, making them important as batteries in electronic devices.

Answer

They convert electrical energy into light, making them important as light sources in electronic devices.

Question 42

What does a circuit breaker do in an electrical circuit?

Accepted Answer

Prevents fires

Answer

Controls electricity flow

Answer

Stores energy

Answer

Generates electricity

Question 43

What unit measures electrical current?

Accepted Answer

Amperes

Answer

Volts

Answer

Ohms

Answer

Watts

Question 44

Which material insulates electricity in a circuit?

Accepted Answer

Plastic

Answer

Copper wire

Answer

Metal rod

Answer

Water

Question 45

What safety measures are important when working with electricity?

Accepted Answer

Wear safety gear, turn off power before working, never touch live wires.

Answer

Turn on power before working, wear loose clothing, touch live wires to test current.

Answer

Wear safety gear, turn off power after working, touch live wires.

Answer

Wear loose clothing, touch live wires to test current, never turn off power.

Question 46

What is an advantage of using electricity in homes and schools?

Accepted Answer

Convenient and efficient way to power devices

Answer

Renewable and sustainable energy source

Answer

Completely safe and harmless

Answer

Very expensive and difficult to obtain

Question 47

Which material allows electricity to pass through it easily?

Accepted Answer

Metal

Answer

Rubber

Answer

Wood

Answer

Plastic

Question 48

What is the primary function of a cell in an electrical circuit?

Accepted Answer

To generate electricity

Answer

To store electricity

Answer

To control electricity flow

Answer

To protect the circuit

Question 49

Which of the following describes a circuit?

Accepted Answer

A path that allows electricity to flow in a complete loop

Answer

A device that contains electricity

Answer

A tool used to measure electricity

Answer

A component designed to shield electricity

Question 50

When you close a switch in a circuit, what happens?

Accepted Answer

Electricity flows through the circuit and a light turns on.

Answer

Electricity stops flowing and a light turns off.

Answer

The energy from the battery increases and a light shines brighter.

Answer

The wires become hot and a light melts.

Question 51

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

Accepted Answer

To protect the circuit from excessive electrical flow

Answer

To store electricity for later use

Answer

To generate electricity

Answer

To control the flow of electricity

Question 52

Which of the following is an example of a circuit where the components are connected in a single loop?

Accepted Answer

Christmas tree lights

Answer

Parallel circuit

Answer

Circuit with a switch

Answer

Circuit with a fuse

Question 53

What is the difference between a circuit and a component?

Accepted Answer

A circuit is a complete path for electricity to flow, while a component is a single part of a circuit

Answer

A component is a complete path for electricity to flow, while a circuit is a single part of a component

Answer

A circuit and a component are the same thing

Answer

A circuit is a type of component, while a component is a type of circuit

Question 54

What is the primary purpose of a switch in a circuit?

Accepted Answer

To regulate the flow of electricity

Answer

To protect the circuit from damage

Answer

To store electricity

Answer

To generate electricity

Question 55

In an electrical circuit, how do transistors act like switches?

Accepted Answer

They allow electricity to flow in one direction only.

Answer

They increase the voltage of electrical signals.

Answer

They change digital signals into analog signals.

Answer

They store electrical energy like batteries.

Question 56

What is the main purpose of a circuit breaker?

Accepted Answer

To protect the circuit from damage caused by excessive current

Answer

To store electrical energy

Answer

To control the flow of electricity in a circuit

Answer

To improve the efficiency of a circuit

Question 57

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

Accepted Answer

Motor

Answer

Battery

Answer

Wire

Answer

Light bulb

Question 58

Which material is a good electrical insulator?

Accepted Answer

Rubber

Answer

Copper

Answer

Aluminium

Answer

Water

Question 59

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

Accepted Answer

To prevent excessive current flow

Answer

To store electrical charge

Answer

To improve the efficiency of the circuit

Answer

To provide a path for current to bypass damaged components

Question 60

In an electrical circuit, which component controls whether electricity can flow or not, like turning it on or off?

Accepted Answer

Switch

Answer

Wire

Answer

Lightbulb

Answer

Battery

Question 61

In an electrical circuit, which of these is NOT a component?

Accepted Answer

Magnet

Answer

Battery

Answer

Wire

Answer

Light bulb

Question 62

What's the main reason we use a circuit breaker in an electrical circuit?

Accepted Answer

To stop electricity flow when too much current flows.

Answer

To make electricity flow only one way.

Answer

To store electricity for later use.

Answer

To control how bright lights are.

Question 63

In an electrical circuit, which component lets you control the flow of electricity?

Accepted Answer

Switch

Answer

Battery

Answer

Wire

Question 64

Which material allows electricity to flow through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Rubber

Answer

Plastic