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WorksheetsElectricity and Electric Fields Vocab Practice
Total questions: 20
Worksheet time: 10mins
Which law states that electric charge cannot be created or destroyed?
Law of Conservation of Energy
Law of Conservation of Charge
Law of Electric Fields
Law of Static Electricity
What remains constant in an isolated system according to the Law of Conservation of Charge?
The total amount of energy
The total amount of charge
The total number of electrons
The total number of protons
What can an electric field do even without direct contact?
Create new charges
Push or pull other charges nearby
Destroy charges
Neutralize charges
What is a material called that allows electrons to move easily through it?
Insulator
Conductor
Semiconductor
Resistor
What is the primary function of insulators in electrical systems?
To transfer charge quickly
To protect and contain electric current
To rearrange charges in neutral objects
To allow electrons to move freely
What happens when you rub a balloon against your hair?
The balloon loses electrons and becomes neutral
Electrons move from your hair to the balloon, charging both objects
The balloon gains protons and becomes positively charged
Electrons move from the balloon to your hair, leaving the balloon neutral
What is charging by induction?
The transfer of electric charge through direct contact
The rearrangement of charges in a neutral object caused by a nearby charged object
The movement of electrons freely through a conductor
The process of neutralizing a charged object
What does the separation of leaves in an electroscope indicate?
The presence of a magnetic field
The amount of electric charge present
The flow of electric current
The voltage difference between two points
What is the unit of electric current?
Volts
Coulombs
Amperes
Watts
In a circuit, how does current flow in relation to voltage?
From low voltage to high voltage
From high voltage to low voltage
In the same direction as electron flow
In random directions
What is the potential difference in electrical energy between two points in a circuit called?
Electric current
Voltage
Resistance
Power
What is an electric circuit?
A device used to measure voltage
A closed, continuous path through which electric current can flow
A device used to detect electric charge
A material that resists the flow of electric current
Which of the following is required for a circuit to function properly?
A voltage source, conductors, and a load
A voltage source and a battery only
Conductors and a light bulb only
A load and a motor only
What happens to a circuit when the path is broken?
The circuit becomes closed, and current flows continuously
The circuit becomes open, and current stops flowing
The circuit becomes open, but current flows intermittently
The circuit becomes closed, and current stops flowing
What is resistance measured in?
Volts (V)
Amperes (A)
Ohms (Ω)
Watts (W)
What is the formula for Ohm's Law?
I = V × R
I = V ÷ R
V = I × R
R = V ÷ I
In a series circuit, what happens if one component breaks?
The entire circuit stops working
The current bypasses the broken component
The circuit continues to work partially
The circuit becomes a parallel circuit
What is a parallel circuit?
A circuit with only one path for current to follow
A circuit with multiple branches allowing current to flow through more than one path
A circuit where all devices share the same current
A circuit that stops working if one component breaks
Why are homes typically wired in parallel circuits?
To ensure all appliances operate simultaneously.
To allow each appliance to operate independently.
To reduce the overall voltage in the system.
To increase the current in the circuit.
What is the formula for calculating energy use in kilowatt-hours?
E = IV
E = P/I
E = Pt
E = Vt
