Fields and Interactions

To increase the GRAVITATIONAL potential energy of the magnet, move it...

• closer to another magnet with the same poles facing.

• higher off the ground.

• further away from a magnet with same poles facing.

• closer to another magnet, with opposite poles facing.

To increase the MAGNETIC potential energy of a magnet, move it...

• closer to another magnet, same poles facing.

• lower to the ground.

• further away from another magnet, same poles facing.

• closer to another magnet, opposite poles facing

Which statement is FALSE for gravitational and magnetic forces?

• They both create fields.

• They are both repulsive forces.

• They both can be attractive.

• They are both invisible forces.

If you rub a balloon against a sweater, what happens to the negative charges on the sweater?

• They disappear.

• They increase in number.

• The charges are transferred to the balloon.

• The balloon's positive charges cancel them out.

Which of these will DECREASE the electrostatic force between 2 negatively charged balloons?

• Changing one balloon's orientation, maintain same distance

• Moving 2 balloons closer

• Adding more negative charges to one balloon

• Removing negative charges from one balloon

Electrical charges

• depend upon mass.

• always attracted to each other.

• are small particles in atoms.

• are attracted to magnetic objects.

Imagine an electric field with a positive charge. If a negative charge was released inside the field, what happens?

• Negative charge moves towards the positive charge.

• Negative charge stays in the same spot.

• Negative charge moves away from the positive charge.

• Negative charge moves up and down, same distance.

Which statement is FALSE for fields?

• Fields affect objects from a distance.

• Fields store energy.

• Fields extend through space.

• Fields are the same as forces.

How can an electrically neutral space be created with both positive and negative charges?

• Add more positive charges.

• Add more negative charges.

• Add equal amounts of positive and negative charges.

• Add unequal charges but move them around.

If your Moon transporter is hovering at a height above the track and you remove some charge from the track, it will

• move lower.

• move higher.

• stay in the same hovering height.

• drop to the ground.