Question 1

Which of the following is true of field forces?

Accepted Answer

A force that can be exerted WITHOUT contact.

Answer

Field forces DO NOT exist.

Answer

A force that REQUIRES contact.

Answer

Magnets are the ONLY object known to have field forces.

Question 2

Electric field lines show that the force between an electron (negative charge) and a proton (positive charge)

Accepted Answer

causes the particles to move toward each other.

Answer

has no effect on the particles.

Answer

makes the particles vibrate in place.

Answer

causes the particles to move away from each other.

Question 3

As the distance between two positively charged objects increases, the force between them:

Accepted Answer

decreases.

Answer

cannot be determined.

Answer

remains the same.

Answer

increases.

Question 4

When we used the Van De Graff generator, Why did the rabbit hair and student hair rise away from their body?

Accepted Answer

The hair is charged negative and they repel each other.

Answer

Like cats when you are scared the hairs stand up.

Answer

The positive charges in the hair move to the end causing the hair to move.

Answer

The hair is attracted to the positively charged ceiling.

Question 5

What happens to the gravitational force when we move two objects closer together?

Accepted Answer

The force increases.

Answer

The force stays the same.

Answer

What happens to the gravitational force when we move two objects closer together?

Answer

Distance is not a factor for gravity.

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