Vocabulary
Occurs when two magnets are pulling toward each other
Attraction
True or False: Magnets repel wood
False
This increases when two magnets with like poles facing each other are pushed closer together
Potential Energy
Materials required to build an electromagnet
Battery, wire, and iron nail
A student is holding two strong magnets 1 inch apart from each other. The South pole of the first magnet is facing the South pole of the second magnet. What will happen when the student releases the magnets
The magnets will move away from each other because the magnetic force will push the magnets apart.
Occurs when two magnets are pushing away from each other
Repulsion
True or False: Magnets only attract some metals
True
As the distance between two magnets decreases, potential energy ____________
Increases
The difference between an electromagnet and a permanent magnet
You can turn the magnetism off in an electromagnet
A student has set up two magnet systems. In the first system, the magnets are held 2 inches apart from each other and the North pole of one magnet is facing the South pole of the other magnet. In the second system, the South pole is facing the North pole of the other magnet and the magnets are held 4 inches apart. Which system has more potential energy and why?
The first system because they are closer to each other.
All magnets have two of these, a north one and a south one
Magnetic Poles
Number and names of the magnetic poles
Potential energy increases when a magnet is moved _____________ the magnetic force
Against (in the opposite direction from)
This increases as you wrap more wire coils around an electromagnet
Magnetic Strength
Tool that uses Earth's geomagnetism and always points North
Compass
This refers to the magnetic properties of Earth
Orientation of magnets when they are attracting each other
North and South poles facing each other (Opposites)
Energy cannot be created or destroyed, only transformed.
This type of energy is stored in the battery of an electromagnet
Potential Energy
Draw two magnets with magnetic field lines during ATTRACTION
Most field lines connect one pole of one magnet to the opposite pole of the other magnet.
The space around a magnet in which magnetic forces can act on objects
Magnetic Field
Orientation of magnets when they are repelling each other
North facing North OR South facing South (Like poles)
When two attracting magnets are allowed to come together without friction, potential energy is converted into ________ energy. And, when the two attracting magnets meet, all energy is in the form of __________ energy.
Kinetic; Thermal
The electricity flowing around the wire of an electromagnet is an example of this type of energy
Kinetic Energy
Draw two magnets with magnetic field lines during REPULSION
All field lines connect one pole of a magnet to the opposite pole of that same magnet.