Understanding Electric Charges and Forces

What does the Law of Electric Charges state?

• Like charges attract, and unlike charges repel.

• Like charges repel, and unlike charges attract.

• All charges attract each other.

• All charges repel each other.

Which of the following is an example of charging by friction?

• Rubbing a balloon on your hair.

• Touching a charged rod to a metal sphere.

• Bringing a charged rod near a neutral object without touching.

• Connecting a charged object to the ground.

How does the electrostatic series help in determining charge transfer?

• It lists materials based on their ability to conduct electricity.

• It ranks materials based on their tendency to gain or lose electrons.

• It shows the strength of electric fields.

• It measures the resistance of materials.

What is the result of charging by conduction?

• The object remains neutral.

• The object gains the opposite charge of the charging object.

• The object gains the same charge as the charging object.

• The object loses all its charge.

Which of the following describes temporary charging by induction?

• The object is permanently charged without contact.

• The object is temporarily charged by direct contact.

• The object is temporarily charged without contact.

• The object is permanently charged by direct contact.

What is grounding in the context of electricity?

• Connecting an object to a power source.

• Connecting an object to the Earth to neutralise its charge.

• Insulating an object to prevent charge flow.

• Charging an object by friction.

Which of the following is a characteristic of insulators?

• They allow easy flow of electric charge.

• They do not allow electric charge to flow easily.

• They are always positively charged.

• They are always negatively charged.

What is a conductor?

• A material that does not allow electric charge to flow.

• A material that allows electric charge to flow easily.

• A material that is always neutral.

• A material that is always charged.

What happens during an electric discharge?

• Electric charge is stored in an object.

• Electric charge is transferred from one object to another.

• Electric charge is released from an object.

• Electric charge is created in an object.

How do you draw charge diagrams?

• By using arrows to show the direction of charge flow.

• By using symbols to represent different charges.

• By using lines to connect charged objects.

• By using colours to indicate charge strength.