The flow of electricity
What is current
To pull toward another object. Like opposite poles pull toward each other.
What is attract
A flash of light caused by a discharge of static electricity
What is lightning
As the number of winds increases on an electromagnet, the strength of the magnet...
What is also increases
He was also known as the Wizard of Menlo Park
Who is Thomas Edison
The release of an electrical charge such as a spark of lightning
What is discharge
An instrument that uses a freely moving magnetic needle to indicate direction
What is a compass
Guides a lightning strike safely to the ground
What is a lightning rod
If the north pole of one magnet faces the south pole of another magnet this will occur
What is attraction
A carbon coated cotton thread
What was Edison's first successful filament
A form of energy that can produce light, heat, and magnetism
What is electricity
A piece of iron that becomes a temporary magnet when current flows through a coil of wire around it
What is an electromagnet
Ben Franklin flew a kite into a lightning storm to prove that lightning was a form of this
What is electricity
When current electricity is flowing through a wire it creates this type of weak field
What is a magnetic field
Among his many inventions was the fire department and the lightning rod
Who was Benjamin Franklin
The material in a light bulb that glows when heated by an electrical current
What is a filament
A form of the mineral also called magnetite
What is lodestone
Lightning can discharge between two clouds or from a cloud to this
What is earth or the ground
This happens to the strength between two magnets when they are separated more and more
What is becomes weaker
This is around every magnet including Earth
What is a magnetic force field
Positive and negative charges that are separated and not moving
What is static electricity
A property of certain kinds of materials that causes them to attract iron or steel
What is magnetism
Ben Franklin tied this to the end of the kite string to see if he would get a spark during his experiment
What is a key
This is a cycle of electricity running negative to positive to turn energy into light, heat, or movement
What is a circuit
All batteries have these TWO charges
What are positive and negative