WorksheetsMagnetic Fields Unit Test
Total questions: 22
Worksheet time: 22mins
From what you've learned about the number of coils in an electromagnet and the strength of the magnetic force, which trial would result in the strongest electromagnet?
Trial 1
Trial 2
Trial 3
Trial 4
Trial 5
In this picture, a bar magnet is held close to an electromagnet. What type of energy does it have if it held in place like shown?
Potential Energy
Kinetic Energy
Thermal Energy
Electromagnetic Energy
IF you wanted to INCREASE the stored energy it has, what would you need to do?
Move it farther apart
Move it closer together
You can't do anything to affect the stored energy
IF you flipped the BAR MAGNET, so that the NORTH POLE is closest to the SOUTH POLE of the electromagnet, what direction would the magnetic force be?
↑↑
⟺
⟶⟵
↕
IF you flipped the BAR MAGNET, so that the NORTH POLE is closest to the SOUTH POLE of the electromagnet, how would you give it MORE Potential Energy??
By moving them closer together
By moving them farther apart
By turning them sideways
By moving them upside-down
What will the magnets in the picture do?
Attract
Repel
Neither attract nor repel
Both attract and repel
What will the magnets in the picture do?
Attract each other
Repel each other
Both attract and repel
Neither attract nor repel
Where are is magnetic force the strongest??
at both poles
at the north pole
at the south pole
between the poles
Where are is magnetic force the strongest??
Where the magnetic field lines are spread farthest apart
Magnetic field lines have nothing to do with magnetic strength
Where the magnetic field lines are closest together
If these trains (with strong magnets) were being held together in the position shown, what would happen when you released them?
Nothing would happen because they're not touching
They would move closer together because the magnetic force would pull them closer
They will move apart because the magnets aren't touching
They will move apart because the magnetic force will push them apart
If you could move either of these trains 1 space to either the left or right, which move would cause the biggest increase in PE?
A. Move the cart on Track 2 one space to the right (→).
Move the cart on Track 1 one space to the right (→).
Move 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.
Looking at the field lines in this picture, these two magnets are ________
Attracting
Repelling
Attracting and Repelling
Doing nothing
These magnets would....
Repel
Attract
Are these magnetic field lines attracting or repelling?
repelling
attracting
Are these magnets attracting or repelling?
attracting
repelling
Based on the magnetic field line diagrams, what will happen next with these two sets of magnets?
The magnets in Set 1 will repel, and the magnets in Set 2 will attract.
The magnets in Set 1 will attract, and the magnets in Set 2 will repel.
The magnets in Set 1 will not move, and the magnets in Set 2 will attract.
In both sets, the magnets will attract.
Abdul 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.
A spaceship 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 into speed.
The kinetic energy remains the same because speed and kinetic energy are not related.
There is no way to know what happens to the kinetic energy.
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.
The kinetic energy in the system decreases.
Some kinetic energy changes into potential energy.
Some potential energy changes into kinetic energy.
