Electricity Basics

What is charging by friction?

• Charging by friction is a process where two objects repel each other due to static electricity.

• Charging by friction is a process where two objects rub against each other, causing a transfer of electrons from one object to the other.

• Charging by friction is a process where two objects attract each other due to magnetic forces.

• Charging by friction is a process where two objects exchange heat energy.

Give an example of charging by friction.

• Rubbing a plastic comb against a wool sweater

• Rubbing a wooden pencil against a wooden table

• Rubbing a metal spoon against a metal fork

• Rubbing a glass cup against a glass plate

What are conductors?

• Objects that absorb sound waves

• Materials that allow the flow of electric current.

• Materials that block the flow of electric current

• Substances that emit light

Provide an example of a conductor.

• Silver

• Iron

• Gold

• Copper

What are insulators?

• Insulators are materials that do not conduct electricity well.

• Insulators are materials that are highly magnetic.

• Insulators are materials that are transparent to light.

• Insulators are materials that conduct electricity well.

Give an example of an insulator.

• Glass

• Rubber

• Plastic

• Metal

Explain the difference between series and parallel circuits.

• Series circuits have more resistance than parallel circuits

• Parallel circuits have only one path for current flow

• In series circuits, all components have the same voltage

• The main difference between series and parallel circuits is how the components are connected and how the current flows through them.

What happens to the current in a series circuit if one component fails?

• The current will increase in the circuit.

• The current will reverse direction in the circuit.

• The current will decrease in the circuit.

• The current will stop flowing in the circuit.

How does the current flow in a parallel circuit?

• The current flows through each branch independently and then combines at the end.

• The current flows randomly through the branches

• The current flows in a single path only

• The current flows in opposite directions in each branch

Give an example of a series circuit.

• A circuit where all components are connected in a loop without any branching

• A circuit where the components are connected in a random order without a clear path for the current

• A parallel circuit with multiple branches connected to a single power source

• A simple flashlight circuit where the battery is connected to the switch, then to the light bulb, and finally back to the battery.