Magnetism
If two magnets are moving toward each other, you can infer this about the poles.
What is they are opposite?
When Marty rubbed a balloon on his shirt and it stuck to the wall, this describes the charges that caused the attraction. (Answer with a description of the charges on the balloon and wall).
What is the balloon had more negative charges (electrons) and the shirt had positive charges (protons)?
Both electric and magnetic forces can affect objects in these 2 ways.
What is they can attract or repel?
In order for a copper wire to create a magnetic field this must flow through the wire.
What is electricity?
Stored energy is also called this.
What is potential energy?
Moving magnets closer together will do this to the magnetic force between them.
What would increase the magnetic force between magnets?
These two things can be attractive and repulsive.
What are electric and magnetic forces?
This type of force is only attractive.
What is gravitational force?
When a magnet was dropped into a copper pipe and slowed down, this phenomenon explains why.
What is An electric current is induced?
Doubling the charge and halving the distance between two electrically opposite charges.
What will increase the force of attraction?
Because Earth is a giant magnet is protected by this.
What is a force field (magnetosphere)?
Increasing the number of batteries in a circuit connected to a small motor.
What would increase the speed of the motor?
This describes the relationship between opposite charges and opposite poles in their respective fields.
What is Opposites attract?
To increase the magnetic field of a solenoid, you should do this to the number of loops.
What is Increase the number of loops?
Water behind a dam and energy in a battery.
What are examples of potential energy?
In order for a magnet to induce an electrical force, it must be doing this.
What is moving?
What is lightning?
This is how potential energy changes as like charges or like poles are moved farther apart.
What is the potential energy decreases as like charges or like poles move farther apart?
Number of times a wire is looped, type of material in the core, and amount of material in the core
What are things that affect the strength of an electromagnet?
This is how increasing the number of batteries in a circuit connected to an electric motor would affect the speed of the motor.
What is increase speed?
An electrical current induces a magnetic force and this can induce an electrical current.
What is a moving magnetic force?
The motion in a magnetic field causes these to move in an electric wire.
These are three types of forces that act at a distance and can be explained by force fields.
What are electric, gravitational, and magnetic forces?
When electricity flows through a motor to start it spinning, the electrical energy is transformed into this type of energy.
What is kinetic (mechanical) energy?
This is the difference between an electric motor, an electric generator, and a transformer.
What is that Electric motors produce mechanical/kinetic energy, generators produce electrical energy, and transformers change the voltage of electric currents?