WorksheetsElectricity and Safety Quiz
Total questions: 45
Worksheet time: 23mins
Electricity is the flow of _______.
Atoms
Electrons
Protons
Neutrons
Who is credited with discovering the relationship between electricity and magnetism?
Michael Faraday
Thomas Edison
Nikola Tesla
Benjamin Franklin
The term "static electricity" refers to:
Continuous flow of electrons
Accumulation of electric charge
Energy from batteries
Alternating current
The SI unit of electric current is the _______.
Volt
Ohm
Ampere
Watt
Which of the following produces Direct Current (DC)?
Alternator
Generator
Battery
Transformer
The inventor of the electric light bulb is _______.
Thomas Edison
Alessandro Volta
James Watt
Benjamin Franklin
The source of electricity that converts mechanical energy to electrical energy is a _______.
Battery
Generator
Solar panel
Fuse
Which current changes direction periodically?
AC
DC
Static
Magnetic
Electrical energy can be produced by all except:
Wind
Water
Friction
Wood
The negative charge carrier in electricity is a(n) _______.
Proton
Neutron
Electron
Atom
An example of a good conductor is _______.
Rubber
Plastic
Copper
Glass
The atomic number of an element represents the number of _______.
Electrons
Neutrons
Protons
Atoms
A fuse is used to:
Store current
Increase voltage
Protect the circuit
Produce electricity
What is the function of a circuit breaker?
Converts AC to DC
Opens the circuit during overload
Generates electricity
Reduces resistance
Which of the following is not a source of electricity?
Solar cells
Generators
Wind turbines
Wood
The smallest particle of an element that still has the properties of that element is the _______.
Proton
Atom
Electron
Nucleus
Which safety device melts and breaks the circuit when current is too high?
Capacitor
Switch
Fuse
Transformer
The flow of electric charge through a conductor is called _______.
Voltage
Resistance
Current
Power
The opposition to current flow is called _______.
Voltage
Resistance
Energy
Power
The unit of electrical resistance is the _______
Ampere
Volt
Ohm
Watt
In an AC circuit, the direction of current:
Never changes
Changes constantly
Flows only one way
Stops periodically
A device that stores electrical energy temporarily is a _______.
Capacitor
Resistor
Transformer
Generator
Which safety rule is correct?
Handle live wires with wet hands
Stand on a metal surface while working
Turn off the main switch before repairs
Use damaged extension cords
The nucleus of an atom contains:
Electrons only
Protons and neutrons
Protons and electrons
Electrons and neutrons
Which material is an insulator?
Aluminum
Iron
Glass
Silver
Who developed the alternating current (AC) system?
Nikola Tesla
Michael Faraday
James Watt
Thomas Edison
The process of producing electricity by rotating a coil in a magnetic field is called _______.
Magnetism
Electromagnetic induction
Resistance
Static discharge
The primary use of a transformer is to _______.
Change voltage levels
Store charge
Convert AC to DC
Measure current
Which law states that current is directly proportional to voltage and inversely proportional to resistance?
Newton's Law
Coulomb's Law
Ohm's Law
Faraday's Law
Electricity travels easily through _______.
Insulators
Conductors
Non-metals
Air
Which of the following is a good conductor of electricity?
Glass
Plastic
Copper
Rubber
Which material is least likely to conduct electricity?
Iron
Silver
Rubber
Aluminum
Which of the following is commonly used as an insulating material in electrical cords?
Copper
Plastic
Aluminum
Gold
What happens when an electrical wire's insulation is damaged?
Current stops completely
It becomes safer to handle
Risk of electric shock increases
It improves conductivity
Which metal is considered the best conductor of electricity?
Copper
Silver
Aluminum
Iron
Which material would be used to cover a live wire for safety?
Iron
Rubber
Steel
Silver
Conductors allow electricity to:
Be stored safely
Flow easily
Stop completely
Increase resistance
Which of these everyday objects acts as an insulator?
Spoon
Wooden ruler
Coin
Metal nail
Insulators are important because they:
Generate current
Prevent electric shock
Increase power output
Conduct heat better
A person holding a live wire while standing barefoot on a wet floor risks:
Insulation
Grounding
Electric shock
Resistance
Which material is used for the core of power cables?
Rubber
Copper
Plastic
Glass
The purpose of insulation in electric wires is to:
Increase voltage
Prevent short circuits
Lower resistance
Reduce current flow
Which statement is true about insulators?
They allow current to flow easily.
They have loosely bound electrons.
They resist the flow of electric current.
They are all metallic materials.
Which material below is both a poor conductor of electricity and used for protection?
Aluminum
Glass
Copper
Zinc
The metal tip of an electric plug is a conductor, while the surrounding casing is an ______.
Electron
Insulator
Amplifier
Atom
