14 questions
Dylan puts 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 closer to each other because the magnetic force will pull the trains together.
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.
Dakota moves a magnetic toy train toward a magnet that cannot move. What happens to the potential energy in the system of magnets during the movement?
The potential energy increases because the train moves against the magnetic force.
The potential energy decreases because the train moves against the magnetic force.
The potential energy decreases because the train moves in the same direction as the magnetic force.
The potential energy does not change because the magnets in the system do not change.
Pablo sets identical magnetic carts on two tracks. At the end of each track is a large magnet that cannot move. Pablo can move the carts one space to the left or one space to the right. Which movement will increase the potential energy in the system the most?
Moving the cart on Track 1 one space to the right
Moving the cart on Track 1 one space to the left
Moving the cart on Track 2 one space to the left
All these movements will result in the same change in potential energy because they each move a cart the same distance.
Francisco is holding two magnets close to each other. What will happen when he lets go?
The magnets will move away from each other because the magnetic force will push the magnets apart.
The magnets will move closer to each other because the magnetic force will pull the magnets together.
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.
In a computer simulation, Noni moves a magnet (Magnet 1) away from another magnet (Magnet 2) that cannot move. Which statement accurately describes the change in potential energy?
The potential energy does not change because the magnets in the system do not change.
The potential energy decreases because Magnet 1 moves in the same direction as the magnetic force.
The potential energy decreases because Magnet 1 moves against the magnetic force.
The potential energy increases because Magnet 1 moves against the magnetic force.
An engineer is investigating potential energy with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. For the experiment, the engineer will move one car one space. Which movement will result in the largest increase in potential energy?
Moving Car 2 one space toward the center magnet.
Moving Car 1 one space away from the center magnet.
Moving Car 1 car one space toward the center magnet.
All these movements will result in the same change in potential energy because they each move a car the same distance.
Cecilia puts 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 closer to each other because the magnetic force will pull the trains together.
The trains will move away from each other because the magnets are not touching.
The trains will move away from each other because the magnetic force will push the trains apart.
Katrina moves a magnetic toy train toward a magnet that cannot move. What happens to the potential energy in the system of magnets during the move?
The potential energy increases because the train moves against the magnetic force.
The potential energy decreases because the train moves against the magnetic force.
The potential energy decreases because the train moves in the same direction as the magnetic force.
The potential energy does not change because the magnets in the system do not change.
Peter sets identical magnetic carts on two tracks. At the end of each track is a large magnet that cannot move. Peter can move the carts one space to the left or one space to the right. Which movement will increase the potential energy in the system the most?
Moving the cart on Track 1 one space to the right
Moving the cart on Track 1 one space to the left
Moving the cart on Track 2 one space to the left
All these movements will result in the same change in potential energy because they each move a magnetic cart the same distance.
Jerome puts two magnetic vehicles very close to each other. What will happen next, and why?
The magnetic vehicles will not move because the magnets are not touching.
The magnetic vehicles will move closer to each other because the magnetic force will pull the vehicles together.
The magnetic vehicles will move away from each other because the magnetic force will push the vehicles apart.
The magnetic vehicles will move away from each other because the magnets are not touching.
In a computer simulation, Ayesha moves a magnet (Magnet 2) away from another magnet (Magnet 1) that cannot move. Which statement accurately describes the change in potential energy?
The potential energy does not change because the magnets in the system do not change.
The potential energy decreases because Magnet 2 moves against the magnetic force.
The potential energy decreases because Magnet 2 moves in the same direction as the magnetic force.
The potential energy increases because Magnet 2 moves against the magnetic force.
An engineer is experimenting with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. For the experiment, the engineer will move one car one space. Which movement will result in the largest increase in potential energy?
Moving Car 2 one space toward the center magnet.
Moving Car 2 one space away from the center magnet.
Moving Car 1 one space away from the center magnet.
All these movements will result in the same change in potential energy because they each move a roller coaster car the same distance.
Jamal is playing with magnetic toy vehicles. He has two identical magnetic vehicles (Car 1 and Car 2) on different sides of a center magnet that cannot move. His friend Simone challenges him to move one vehicle one space to the left or the right in order to get the largest increase in potential energy. That means Jamal can move Car 1 to point A or point B, or he can move Car 2 to point C or point D.
Explain which movement Jamal should make (which car and which point), and why that movement will result in the largest increase in potential energy. Describe the magnetic force that will act on the vehicle he moves.
Fernando is an engineer at an amusement park who is experimenting with changes to the setup for a magnetic roller coaster ride. In one ride, there are
two identical roller coaster cars (Car 1 and Car 2) that start on opposite sides of a large magnet located in the center of a station. He moves both cars, so each car ends up one space farther away from the large magnet.
How did the potential energy of the two cars change? Did the potential energy of one car change more than the other? Why do you think so?