WorksheetsCircuits, conductors and insulators Review
Total questions: 22
Worksheet time: 11mins
Which of the following materials is a good conductor of electricity?
Copper
Wood
What is an insulator?
A device that stores electrical energy
A material that does not allow electricity to flow through it easily
Which of the following is an example of an insulator?
Iron
Rubber
What is the purpose of a circuit?
To block electrical current
To provide a path for electricity to flow
What happens to a circuit when a switch is turned off?
The circuit generates more electricity
The circuit is open and electricity cannot flow
Which of the following statements is true about conductors?
They allow electricity to flow freely
They only work with batteries
What is the role of a battery in a circuit?
To insulate the circuit
To provide the electrical energy needed to power devices
What type of material is typically used to wrap electrical wires for safety?
Insulator
Capacitor
Why are metals like copper often used for electrical wiring?
Because they are good insulators
Because they are good conductors of electricity
What is a circuit that has only one path for electricity to flow called?
Open circuit
Series circuit
What component is used to store electrical energy in a circuit?
Capacitor
Inductor
In a parallel circuit, what happens if one branch is disconnected?
The voltage increases in all branches
The other branches still work
What is the purpose of a resistor in a circuit?
To limit the flow of electric current
To create light
What device converts electrical energy into mechanical energy?
Battery
Motor
What does a fuse do in an electrical circuit?
Protects the circuit from overcurrent
Increases voltage
What type of circuit allows electricity to flow freely without interruption?
Series circuit
Closed circuit
What type of energy is stored in food and fuels?
Kinetic Energy
Chemical Energy
What type of energy is associated with moving objects?
Kinetic Energy
Thermal Energy
What type of energy comes from the sun?
Mechanical Energy
Solar Energy
What type of energy is stored in an object due to its height?
Sound Energy
Potential Energy
What type of energy is produced when an object vibrates?
Mechanical Energy
Sound Energy
What type of energy is associated with temperature and heat?
Kinetic Energy
Thermal Energy
