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Electricity and Safety Quiz

Total questions: 45

Worksheet time: 23mins

Name
Class
Date
1.

Electricity is the flow of _______.

a)

Atoms

b)

Electrons

c)

Protons

d)

Neutrons

2.

Who is credited with discovering the relationship between electricity and magnetism?

a)

Michael Faraday

b)

Thomas Edison

c)

Nikola Tesla

d)

Benjamin Franklin

3.

The term "static electricity" refers to:

a)

Continuous flow of electrons

b)

Accumulation of electric charge

c)

Energy from batteries

d)

Alternating current

4.

The SI unit of electric current is the _______.

a)

Volt

b)

Ohm

c)

Ampere

d)

Watt

5.

Which of the following produces Direct Current (DC)?

a)

Alternator

b)

Generator

c)

Battery

d)

Transformer

6.

The inventor of the electric light bulb is _______.

a)

Thomas Edison

b)

Alessandro Volta

c)

James Watt

d)

Benjamin Franklin

7.

The source of electricity that converts mechanical energy to electrical energy is a _______.

a)

Battery

b)

Generator

c)

Solar panel

d)

Fuse

8.

Which current changes direction periodically?

a)

AC

b)

DC

c)

Static

d)

Magnetic

9.

Electrical energy can be produced by all except:

a)

Wind

b)

Water

c)

Friction

d)

Wood

10.

The negative charge carrier in electricity is a(n) _______.

a)

Proton

b)

Neutron

c)

Electron

d)

Atom

11.

An example of a good conductor is _______.

a)

Rubber

b)

Plastic

c)

Copper

d)

Glass

12.

The atomic number of an element represents the number of _______.

a)

Electrons

b)

Neutrons

c)

Protons

d)

Atoms

13.

A fuse is used to:

a)

Store current

b)

Increase voltage

c)

Protect the circuit

d)

Produce electricity

14.

What is the function of a circuit breaker?

a)

Converts AC to DC

b)

Opens the circuit during overload

c)

Generates electricity

d)

Reduces resistance

15.

Which of the following is not a source of electricity?

a)

Solar cells

b)

Generators

c)

Wind turbines

d)

Wood

16.

The smallest particle of an element that still has the properties of that element is the _______.

a)

Proton

b)

Atom

c)

Electron

d)

Nucleus

17.

Which safety device melts and breaks the circuit when current is too high?

a)

Capacitor

b)

Switch

c)

Fuse

d)

Transformer

18.

The flow of electric charge through a conductor is called _______.

a)

Voltage

b)

Resistance

c)

Current

d)

Power

19.

The opposition to current flow is called _______.

a)

Voltage

b)

Resistance

c)

Energy

d)

Power

20.

The unit of electrical resistance is the _______

a)

Ampere

b)

Volt

c)

Ohm

d)

Watt

21.

In an AC circuit, the direction of current:

a)

Never changes

b)

Changes constantly

c)

Flows only one way

d)

Stops periodically

22.

A device that stores electrical energy temporarily is a _______.

a)

Capacitor

b)

Resistor

c)

Transformer

d)

Generator

23.

Which safety rule is correct?

a)

Handle live wires with wet hands

b)

Stand on a metal surface while working

c)

Turn off the main switch before repairs

d)

Use damaged extension cords

24.

The nucleus of an atom contains:

a)

Electrons only

b)

Protons and neutrons

c)

Protons and electrons

d)

Electrons and neutrons

25.

Which material is an insulator?

a)

Aluminum

b)

Iron

c)

Glass

d)

Silver

26.

Who developed the alternating current (AC) system?

a)

Nikola Tesla

b)

Michael Faraday

c)

James Watt

d)

Thomas Edison

27.

The process of producing electricity by rotating a coil in a magnetic field is called _______.

a)

Magnetism

b)

Electromagnetic induction

c)

Resistance

d)

Static discharge

28.

The primary use of a transformer is to _______.

a)

Change voltage levels

b)

Store charge

c)

Convert AC to DC

d)

Measure current

29.

Which law states that current is directly proportional to voltage and inversely proportional to resistance?

a)

Newton's Law

b)

Coulomb's Law

c)

Ohm's Law

d)

Faraday's Law

30.

Electricity travels easily through _______.

a)

Insulators

b)

Conductors

c)

Non-metals

d)

Air

31.

Which of the following is a good conductor of electricity?

a)

Glass

b)

Plastic

c)

Copper

d)

Rubber

32.

Which material is least likely to conduct electricity?

a)

Iron

b)

Silver

c)

Rubber

d)

Aluminum

33.

Which of the following is commonly used as an insulating material in electrical cords?

a)

Copper

b)

Plastic

c)

Aluminum

d)

Gold

34.

What happens when an electrical wire's insulation is damaged?

a)

Current stops completely

b)

It becomes safer to handle

c)

Risk of electric shock increases

d)

It improves conductivity

35.

Which metal is considered the best conductor of electricity?

a)

Copper

b)

Silver

c)

Aluminum

d)

Iron

36.

Which material would be used to cover a live wire for safety?

a)

Iron

b)

Rubber

c)

Steel

d)

Silver

37.

Conductors allow electricity to:

a)

Be stored safely

b)

Flow easily

c)

Stop completely

d)

Increase resistance

38.

Which of these everyday objects acts as an insulator?

a)

Spoon

b)

Wooden ruler

c)

Coin

d)

Metal nail

39.

Insulators are important because they:

a)

Generate current

b)

Prevent electric shock

c)

Increase power output

d)

Conduct heat better

40.

A person holding a live wire while standing barefoot on a wet floor risks:

a)

Insulation

b)

Grounding

c)

Electric shock

d)

Resistance

41.

Which material is used for the core of power cables?

a)

Rubber

b)

Copper

c)

Plastic

d)

Glass

42.

The purpose of insulation in electric wires is to:

a)

Increase voltage

b)

Prevent short circuits

c)

Lower resistance

d)

Reduce current flow

43.

Which statement is true about insulators?

a)

They allow current to flow easily.

b)

They have loosely bound electrons.

c)

They resist the flow of electric current.

d)

They are all metallic materials.

44.

Which material below is both a poor conductor of electricity and used for protection?

a)

Aluminum

b)

Glass

c)

Copper

d)

Zinc

45.

The metal tip of an electric plug is a conductor, while the surrounding casing is an ______.

a)

Electron

b)

Insulator

c)

Amplifier

d)

Atom