Electricity & Circuits

What is the difference between a series circuit and a parallel circuit?

• The main difference is the color of the wires used

• Parallel circuits have components connected in a single path

• The main difference is how components are connected: series circuits have components connected in a single path, while parallel circuits have components connected in multiple paths.

• Series circuits have components connected in multiple paths

Name two sources of electricity commonly used in households.

• Wind power, Solar power

• Coal, Natural gas

• Hydropower, Geothermal energy

• Power grid, batteries

What is a conductor in an electrical circuit?

• A conductor in an electrical circuit is a material that blocks the flow of electric current.

• A conductor in an electrical circuit is a device that stores electricity.

• A conductor in an electrical circuit is a material that allows the flow of electric current.

• A conductor in an electrical circuit is a component that generates electricity.

Give an example of a good conductor of electricity.

• Silver

• Aluminum

• Copper

• Gold

What is an insulator in an electrical circuit?

• A material that generates electricity.

• A material that absorbs electricity.

• A material that amplifies electricity.

• A material that does not conduct electricity.

Provide an example of an insulator used in electrical wiring.

• Plastic

• Glass

• Metal

• Rubber

Explain the role of a battery in an electrical circuit.

• The role of a battery in an electrical circuit is to provide voltage for the flow of electric current.

• Batteries are only needed in circuits with high resistance.

• The battery in an electrical circuit is used to store excess electrons.

• The main purpose of a battery in a circuit is to regulate the flow of current.

How does a solar panel generate electricity?

• Solar panels generate electricity through wind power.

• Solar panels generate electricity through the photovoltaic effect.

• Solar panels generate electricity through geothermal energy.

• Solar panels generate electricity through nuclear fusion.

Why is it important to use proper insulation in electrical wiring?

• To save money on materials and installation costs

• To make the wiring more aesthetically pleasing

• To prevent electrical shocks, fires, and short circuits, and to maintain system integrity and safety.

• To increase the risk of electrical shocks and fires

Describe the function of a fuse in an electrical circuit.

• A fuse in an electrical circuit acts as a safety device that breaks the circuit when the current exceeds a certain level, protecting the components from damage.

• A fuse is used to amplify the voltage in the circuit

• A fuse prevents the circuit from working properly

• A fuse increases the current in the circuit