Currents
What is a material that conducts electric current poorly?
A positive and positive charge
What is repel?
Copper
What is a conductor?
At both poles
Where is a magnetic field the strongest?
Michael Faraday
The other light bulbs will go out
What is a series circuit and what happens when one light bulb goes out?
A positive and a negative charge
What is atttract?
Rubber
What is an insulator?
The needle reacts to Earth's magnetic poles
Why does a compass needle point in a north and south direction?
Using more turns in the metal coil
How can the strength of an electromagnet be increased?
The slower the coils of an electromagnet move
What makes a weaker current?
When positive and negative charges no longer balance
What causes static electricity?
An insulator
What is a material that conducts electric current poorly?
Electrical energy
What is produced when a coiled wire is spun around a magnet?
electric energy, magnetic energy, mechanical energy
What types of energy do doorbells us?