Amplify Magnetic Fields Critical Juncture-A

The Letters N and S show the magnetic poles. Michael places two magnetic toy trains very close to each other on a track. What will happen next and why?

• The trains will not move because the magnets are not touching.
• The trains will move away from each other because the magnetic force will push the trains apart.
• The trains will move away from each other because the magnets are not touching.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

In the computer simulation, John moves a magnet (magnet 2) towards another magnet (Magnet 1) that can not move. What happens to the potential energy in the system of magnets?

• The potential energy does not change because the magnets in teh system do not change.
• The potential energy increases because Magnet 2 moves against the magnetic force.
• The potential energy decreases because Magnet 2 moves against the magnetic force.

Tags

NGSS.MS-PS3-2

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

• The potential energy does not change because the magnets in the system do not change.
• The potential energy increases because the train moves against the magnetic force.
• The potential energy decreases because the train moves against the magnetic force.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-2

Sandra sets identical magnetic carts on two tracks. At the end of each track is a large magnet that cannot move. She then moves the carts one space to the left or one space to the right. Which movement will result in the largest increase in Potential Energy?

• Moving the cart on Track 1 one space to the right (-->)
• Moving the cart on Track 2 one space to the right (-->)
• All of these movements will result in the same change in potential energy because they each move a cart the same distance.

Tags

NGSS.MS-PS3-2

Based on the magnetic field lines in the diagrams, what will happen next with these two sets of magnets?

• The magnets in Set 1 will repel, the magnets in Set 2 will attract.
• The magnets in Set 1 will attract, the magnets in Set 2 will repel.
• In both sets, the magnets will attract.

Tags

NGSS.MS-PS2-3

Eli is holding two magnets close to each other. What will happen when he lets go?

• The magnets will not move because the magnets are not touching.
• The magnets will move away from each other because the magnets are not touching.
• The magnets will move away from each other because the magnetic force will push the magnets apart.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Mr. R is an engineer. He is investigating potential energy with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. To test his ideas, he will move one car one space. Which movement will result in the largest increase in potential energy?

• Moving Car 1 one space toward the center magnet.
• Moving Car 2 one space away from the center magnet.
• Moving Car 2 one space toward the center magnet.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-5

A spaceship is traveling through space. Suddenly, its kinetic energy decreases. What is most likely to be true about the speed of the spaceship?

• The speed increases as the kinetic energy is converted into speed.
• The speed decreases as the kinetic energy decreases.
• The speed remains the same because speed and kinetic energy are not related.

Tags

NGSS.MS-PS3-1

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

• The Kinetic Energy increases as its speed increases.
• The Kinetic Energy decreases as it is converted to speed.
• The Kinetic Energy remains the same because speed and Kinetic Energy are not related.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What happens to the energy in a system of magnets when the magnetic force causes two magnets to move?

• The potential energy in the system increases.
• Some kinetic energy changes into potential energy.
• Some potential energy changes into kinetic energy.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-1