Introduction to Electric Fields and Forces

The video explains that objects with electric charge, like a comb, have an electric field around them. This field extends outward and can exert a force on nearby objects, such as pulling pieces of paper towards the charged comb. This interaction is known as electric force.

What surrounds an object that has an electric charge?

• A magnetic field

• An electric field

• A gravitational field

• A sound wave

How does an electric field behave around a charged object?

• It extends inward

• It disappears

• It remains static

• It extends outward

What happens when a charged comb is brought near pieces of paper?

• The paper pieces are repelled

• The paper pieces are pulled toward the comb

• The paper pieces remain unaffected

• The paper pieces catch fire

What is the term for the pull or force between charged objects?

• Nuclear force

• Electric force

• Gravitational force

• Magnetic force

Which of the following best describes an electric force?

• A force that acts between magnetic poles

• A force that acts between charged objects

• A force that acts only on neutral objects

• A force that acts only in a vacuum