Per. 4: Magnetic Field Assessment

Trevor moves a magnetic toy train away from a magnet that cannot move. What happens to the potential energy in the system of magnets during the movement?

• The potential energy decreases because the train moves in the same direction as the magnetic force.

• The potential energy decreases because the train moves against the magnetic force.

• The potential energy increases because the train moves against the magnetic force.

• The potential energy does not change because the magnets in the system do not change.

Between two magnets with the alike poles facing each other, what type of magnetic force is stored in the magnetic field?

• There is no energy being stored in the magnetic field

• Kinetic energy is stored in the magnetic field

• Thermal energy is stored in the magnetic field

• Potential energy is stored in the magnetic field

Sharona puts two magnetic toy vehicles very close to each other. What will happen next and why?

• The toy vehicles will not move because the magnets are not touching.

• The toy vehicles will move closer to each other because the magnetic force will put the vehicles together.

• The toy vehicles will move away from each other because the magnets are not touching.

• The toy vehicles will not move away from each other because the magnetic force will push the toy vehicles apart.

CHECK OFF only ONE answer. What kind of magnet can be turned on and off?

• Refrigerator Magnet

• Permanent Magnet

• Electromagnet

• Iron

In this photo, what type of force is being represented? WHY? (You must FULLY describe the photo, the type of force, & what will HAPPEN).

A spaceship is traveling through space. Suddenly, it's speed increases. What can you say about the kinetic energy of the space ship?

• The kinetic energy increases as its speed increases.

• The kinetic energy decreases as it is converted into speed.

• The kinetic energy remains the same because speed and kinetic energy are not related.

• There is no way to know what happened to the kinetic energy.

CHECK OFF the correct answers that represents the magnetic forces between magnets, certain metals, and electromagnets.

• Attract

• Transfer

• Convert

• Repel

• System

If you moved the spacecraft magnet against a stronger force, what would happen?

• More potential energy would be stored in the magnetic field, and the spacecraft magnet would travel farther/faster.

• Less potential energy would be stored in the magnetic field, and the space craft magnet wold not travel as far or as fast.

• The same amount of potential energy would be stored in the magnetic field, and the spacecraft would travel the same distance at the same speed.

• More potential energy would be stored in the magnetic field, but the launcher magnet would travel the same distance at the same speed.

In your OWN words, how are electromagnets similar to other magnets?

TRUE/FALSE: The pattern of magnetic field lines around attracting magnets are different from the pattern of magnetic field lines around repelling magnets.

• True

• False