Category: Static & Current Electricity
A buildup of electric charge on an object or surface.
What is static electricity?
When two magnets push away from one another; happens when two north or two south poles meet.
What is repelling?
The name of the device that uses a magnet to indicate direction.
What is a compass?
This force acts over a distance to pull objects toward the Earth.
What is gravity?
Solenoid
What is a coil of wire that has a current?
A material that allows electricity to flow through it easily.
What is a conductor?
The type of magnet used in a car or crane.
What is an electromagnet?
If a circuit is open, the electricity will _____.
What is stop?
The strength of gravity depends on these two factors.
What are mass and distance?
This required to create an electromagnet.
What is solenoid, power source, and a core?
This is a measure of the amount of electrical energy transferred by an electric charge as it moves from one point to another in a circuit.
What is voltage?
This is the area around a magnet where its magnetic force can be detected.
What is a magnetic field?
Electric motors and electric generators have this inside which spins to transfer the energy.
What is an electromagnet?
True or False: Gravity is a push force.
What is False?
If you do this it makes a solenoid stronger.
What is increasing the number of coils, pushing the coils closer together, use a bigger battery, or use a thicker copper wire?
This type of circuit has only one path for the electric current to flow.
What is a series circuit?
True or False: All magnets have the same shape and size.
What is False?
This component is used to close and open the current in a circuit.
What is a switch?
The force that acts between two electrically charged particles.
What is electric force?
Doing this will increase the strength of an electromagnet.
What is adding loops to the solenoid? What is pushing the loops together? What is having a stronger ferromagnetic core? What is having a stronger power source?
Particles moving between atoms in storm clouds become this.
What is charged?
This metal is frequently used to make permanent magnets.
What is iron?
Aside from electromagnetism, these are two other ways electricity effects matter.
What are heating and lighting (or chemical changes)?
Electromagnetism is one of these, which also includes gravity.
What are the fundamental forces of nature?
Two ways that electromagnets can be used.
What is video recorders, door bells, computers, credit cards. headphones, MRI machines?