Attract objects of iron,cobalt,and nickel.Like poles of 2 magnets repel each other.
What are properties of magnets?
100
A type of magnet in which the magnetic field is produced by an electric current.
What is electromagnet?
100
The force between charged objects.
What is electric field?
100
The rate at which charges pass a given point.
What is electric current?
100
The rate at which electrical energy is changed into other forms of energy.
What is electric power?
200
Points on a magnet that have opposite magnetic qualities.
What is magnetic poles?
200
the interaction between electricity and magnetism.
What is electromagnetism?
200
Like charges repel, or push away, and opposite charges attract.
What is Law of Electric Charges?
200
The charges always flow in the same direction.
What is Direct Currents?
200
Whether a material is magnetic depends on the material’s atoms.
What is the cause of magnetism?
300
The force of attraction or repulsion generated by moving or spinning electric charges.
What is Magnetic Force?
300
Discovered the relationship between electricity and magnetism in 1820.
What is Hans Christian Oersted?
300
The force between charged objects.
What is electric force?
300
The charges continually shift from flowing in one direction to flowing in the reverse direction.
What is alternating current?
300
Made from materials that are easy to magnetize. But they tend to lose their magnetization easily.
What is temporary magnets?
400
Dropping a magnet or hitting it too hard can move the domains. Putting the magnet in a strong magnetic field that is opposite to its own can also move domains. Increasing the temperature of a magnet can also move them. At higher temperatures, atoms in the magnet vibrate faster. As a result, the atoms in the domains may no longer line up. These are all examples of _____.
What is demagnetization?
400
A coil of wire that produces a magnetic field when carrying an electric current.
What is Solenoid?
400
A material in which charges can move freely
What is electrical conductor?
400
The potential difference between two points; measured in volts
What is voltage?
400
A spark of static electricity can measure up to_____ volts.
What is three thousand?
500
North and South
What are the two types of poles?
500
Electromagnetic fields, such as electric fields, magnetic fields, and light
What does the electromagnetism force show?
500
Positive and negative.
What are the two types of electric charges?
500
The Ohm's Law
What is used to find electric current?
500
Electricity travels at the speed of light - more than ________ miles per second!