Energy
Attract/Repel
Changes in Energy
Electromagnets
Wildcard
100
What type of energy is does a magnet have when it pushes away from another magnet?
Kinetic
100
What do two magnets with opposite poles do when released?
Attract
100
Where is a magnet's field the strongest?
Closest to the magnet.
100
What is an electromagnet?
A magnet powered by an electric current (electricity)
100
Describe how you would draw the magnetic field lines on two magnets that are attracting.
You would draw the lines connecting from one magnets to the opposite pole of the other magnet.
200
What type of energy do two magnets being held together with their south poles facing each other?
Potential
200
What do two with the same poles do when released?
Repel
200
How will the energy of two magnets with their north poles being held 1 cm away from each other change when released?
The potential energy will decrease but the kinetic energy will increase.
200
How are electromagnets different than regular magnets?
- They can be turned on or off - Their strength can be increased or decreased - They are made of multiple parts
200
What has more kinetic energy a bowling ball rolling down an bowling alley or a snail slowly moving down a sidewalk?
The bowling ball because it is moving fast.
300
What type of energy does a single magnet sitting by itself on the floor have?
Neither kinetic nor potential
300
Why do magnets with opposite poles attract?
The force of their magnetic fields pull together
300
Which will have a great change in potential energy: pushing two bar magnets with their same poles together or pushing two ring magnets together with their same poles?
Ring magnets because they have a stronger magnetic field.
300
How are electromagnets similar to regular magnets?
-They have a north and south pole. -They can attract and repel
300
If two magnets of the same strength are both facing a center magnet with the same poles facing the center magnet which magnet would you move to transfer more energy into the magnetic system? They are NOT the same distance from the center magnet?
The magnet that is closer to the center magnet because moving a magnet agains a stronger magnetic field generates more energy.
400
A single magnet being 10 feet off the ground being held in your hand has what type of energy?
Potential (due to gravity)
400
Why do two magnets with the same poles repel?
The force of their magnetic fields push against each other.
400
How do you transfer potential energy into a magnetic system?
Move the magnet against its magnetic field.
400
What were the experimental variables in the electromagnet lab?
IV- Number of coils DV- Strength of magnet
500
A single magnet being 10 feet off the ground being held in your hand that you are shaking has what type of energy?
Potential (due to gravity) and kinetic (because you are shaking it)
500
What does it mean for a magnet to repel?
The magnets will push away from each other.
500
What does it mean to move a magnet against its magnetic field?
Move it the opposite direction than it wants to move. Ex: pulling apart two attracting magnets or pushing together two repelling magnets.
500
What was the relationship between the IV and DV in the electromagnet lab?
As the number of coils increase the strength of the magnet also increases.
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