Ch 21 Warm up

What are the two types of electric charge?

• Negative and Positive

• Positive and Neutral

• Up and Down

• North and South

Conductors have ____ electrons

Which of the following is Coulomb's Law?

Which of the following is not a way to charge an object?

• Conduction
• Induction
• Rubbing

• Radiation

Opposite charges ________ and like charges ________.

• attract, neutralize.

• neutralize, attract.

• attract, repel.

• repel, attract.

A positively charged object is attracted to another object. What could that object be? (pick all that apply)

• A neutral conductor

• A neutral insulator

• A positively charged object

• A negatively charged object

The electric field indicates the direction of the _________ on a ________ test charge, q.

• Force; Positive

• Force; Negative

• Equipotential Surface; Positive

• Equipotential Surface; Negative

For a point charge, the electric field is

An Electric Dipole is a combination of .....

• a single charge in isolation
• any interaction between two charges

• two equal and opposite charges separated by a distance
• two charges of different magnitudes

The electric field inside a conductor is ....

• zero
• variable
• constant nonzero

• always positive