Static Electricity Quiz

What happens to the charges on an object when it is charged by friction?

• They are created from nothing.

• They are transferred from one object to another.

• They are destroyed.

• They remain unchanged.

Which of the following materials is most likely to gain electrons when rubbed against another object?

• Copper

• Rubber

• Gold

• Aluminum

What is the shape of the electric field around a single positive point charge?

• Straight lines radiating outwards

• Straight lines radiating inwards

• Circular loops around the charge

• Randomly oriented

Which of the following statements is true about conductors?

• They do not allow electric charges to move freely.

• They have a high resistance to electric current.

• They allow electric charges to move freely.

• They cannot be charged by friction.

What is electrostatic induction?

• The process of creating a charged object by rubbing two objects together.

• The redistribution of electric charges in an object, caused by the electric field of another object.

• The destruction of electric charges.

• The transfer of electric charges from one object to another without contact.

Which of the following is an insulator?

• Copper

• Aluminum

• Rubber

• Gold

What happens to the electric field lines when two positive charges are brought close to each other?

• They merge into one line.

• They repel and diverge from each other.

• They attract and converge on a point between the charges.

• They cancel each other out and disappear.

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Why do objects charged by friction often lose their charge after a while?

• The charges are destroyed over time.

• The charges return to their original object.

• The charges dissipate into the air or transfer to other objects.

• The process of charging by friction is reversible.

Which of the following scenarios best illustrates the concept of charging by friction?

• A metal rod is struck by lightning.

• A balloon sticks to a wall after being rubbed on hair.

• A battery powers a flashlight.

• A circuit is completed with a switch.

In the context of electric fields, what does the term "field strength" refer to?

• The amount of charge in the field.

• The resistance to electric flow in the field.

• The force per unit charge at a point in the field.

• The total energy stored in the field.