Vocabulary
to pull objects toward one another
What is attract
a push or a pull that can change the motion of an object
What is Force
5.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?
A.The potential energy decreases because the train moves in the same direction as the magnetic force.
B.The potential energy decreases because the train moves against the magnetic force.
C.The potential energy increases because the train moves against the magnetic force.
D.The potential energy does not change because the magnets in the system do not change.
What is C.
EASY Points
Who is the Teacher for Science class
Who is Mr. Tow
to push objects away from each other
What is repel
to provide evidence that goes against a claim
What is refute
3.In a computer simulation, Jeffrey moves a magnet (Magnet 2) toward another magnet (Magnet 1) that cannot move. What happens to the potential energy in the system of magnets?
A.The potential energy does not change because the magnets in the system do not change.
B.The potential energy increases because Magnet 2 moves against the magnetic force.
C.The potential energy decreases because Magnet 2 moves against the magnetic force.
D.The potential energy decreases because Magnet 2 moves in the same direction as the magnetic force.
4.Ramon puts two magnetic toy trains very close to each other on a track. What will happen next, and why?
A.The trains will move closer to each other because the magnetic force will pull the trains together.
B.The trains will not move because the magnets are not touching.
C.The trains will move away from each other because the magnetic force will push the trains apart.
D.The trains will move away from each other because the magnets are not touching.
What is C
the space around a magnet in which magnetic forces can act on objects
What is magnetic field
the energy that an object has because it is moving
What is kinetic energy
What happens to the energy in a system of magnets when the magnetic force causes two magnets to move?
A.The potential energy in the system increases.
B.The kinetic energy in the system decreases.
C.Some kinetic energy changes into potential energy.
D.Some potential energy changes into kinetic energy.
What is D.
2Based on the magnetic field line diagrams, what will happen next with these two sets of magnets?
A.The magnets in Set 1 will repel, and the magnets in Set 2 will attract.
B. The magnets in Set 1 will attract, and the magnets in Set 2 will repel.
c.The magnets in Set 1 will not move, and the magnets in Set 2 will attract.
D.In both sets, the magnets will attract.
What is A
a type of magnet in which the magnetic field is produced by an electric current
What is electromagnet
to change from one type to another
What is convert
1Based on the magnetic field line diagrams, what will happen next with these sets of magnets?
A.The magnets in Set 1 will attract, and the magnets in Set 2 will repel.
B.The magnets in Set 1 will attract, and the magnets in Set 2 will not move.
C.The magnets in Set 1 will repel, and the magnets in Set 2 will attract.
D. In both sets, the magnets will attract.
What is A.
A spaceship is traveling through space. Suddenly, its speed increases. What can you say about the kinetic energy of the spaceship?
A.The kinetic energy increases as its speed increases.
B.The kinetic energy decreases as it is converted into speed.
C.The kinetic energy remains the same because speed and kinetic energy are not related.
D.There is no way to know what happens to the kinetic energy.
What is A
a line that connects opposite magnetic poles and represents the strength and direction of the magnetic field
What is magnetic field line
something that can be changed and may be measured
What is variable
A spaceship is traveling through space. Suddenly, its kinetic energy decreases. What is most likely to be true about the speed of the spaceship?
A.The speed increases as the kinetic energy is converted into speed.
B.The speed decreases as the kinetic energy decreases.
C.The speed remains the same because speed and kinetic energy are not related.
D.The speed increases to make up for the decrease in kinetic energy.
How does magnetic force affect the energy in a system of magnets when the magnets are released and begin to move?
A.The magnetic force increases the potential energy in the system.
B.The magnetic force decreases the kinetic energy in the system.
C.The magnetic force changes kinetic energy into potential energy.
D.The magnetic force changes potential energy into kinetic energy.
Electromagents are magnets that use electricity to act like magnets. What will affect these type of magnets in order to make them stronger or weaker?
More electricity in the system