Magnetic Force

1. What are the two types of poles found on a bar magnet?

• Negative and Positive

• Nice and Polite

• North and South

Drag the magnet on the right towards the one on the left. What happens when two north poles of the two magnets come near one another?

• They attract each other.

• They repel each other.

• They do nothing.

• They stick together.

What does the green arrow represent in the simulation?

• Frictional force

• Magnetic force

• Gravity

• Electric force

Drag the magnet on the right towards the one on the left again. What kind of force is acting on the magnets?

• Magnetic force pulling

• Gravity pulling

• Magnetic force pushing

Click to flip Magnet A. Drag the right magnet over again. What happens now?

• The magnets repel away from one another.

• The magnet flips over.

• The magnets are attracted to one another.

• There is no magnetic force.

When the opposite poles attract to one another, why does the direction of the green force arrows change?

• The magnetic force is gone.

• The magnets once connected create new poles.

• They have double the force now.

• Just because.

What is the role of the orange arrow in the simulation?

• It shows the electric force.

• It shows the gravitational force.

• It shows the frictional force.

• It shows the magnetic force.

When the magnets are repelled, why does the magnet that moves eventually stop?

• Gravitational force causes it to stop.

• Magnetic force causes it to stop.

• Frictional force causes it to stop.

• Magical force causes it to stop.

Opposite poles__________. Like poles __________.

• repel; attract

• attract, repeat

• attach, repel

• attract, repel

The orange arrow points in the arrow opposite to the magnets' movement because....

• Frictional force works in the same direction as an objects' movement.

• Frictional force is causing a downward force on the object.

• Frictional force is working against the direction of the objects' movement.

• Frictional force is pulling the magnet upward.