Electricity
Electricity is the flow of what subatomic particle?
What is Electrons.
All magnets have 2 ________.
What is poles. North and South.
Generators convert _______ energy into _________ energy.
What is Chemical to Electrical.
When a current flows in one direction. An example would be something that uses a battery.
What is Direct Current.
The path in which electrons flow
What is Circuit.
Why do wires often have a plastic coating?
The greater the distance between two magnets, this happens...
What is the weaker the attraction.
Gravity, electricity, and magnetism act as field forces. What does that mean?
They don't have to have direct contact to exert force on each other.
When electricity has only 1 path to follow.
What is a Series Circuit.
The flow of electrons.
What is current.
To increase electrical resistance, a wire should be...
What is long and thin.
A compass points north because it is attracted to ...
What is Earth's magnetic south pole.
What is the difference in a solenoid and an electromagnet?
What is The Solenoid is coiled wire. An electromagnet is a solenoid with a wire through it.
When electricity has more than one path to follow. If one component isn't working, the rest will continue to work.
What is a Parallel Circuit.
Materials through which electricity cannot easily flow are called...
When charges continuously switch direction to flow in the opposite direction, it's called a _______ _______.
What is Alternating Current.
Iron filings allow us to see that the fields are strongest at ...
What is the poles of the magnet.
Name 3 metals that can be magnetized.
What is Iron, Cobalt, and Nickel.
In an object made of iron, like a nail, what must align in the same direction to create a temporary magnet?
What is magnetic domains.
Materials that allow electricity to flow easily are called?
What is conductors.
Name 4 ways to make an electromagnet stronger.
1. add more coils or move them closer together
2. add a core or a bigger core
3. increase the battery size/voltage
4. use thicker wire
What happens if you break a magnet in half?
What is each magnetic piece will have a north and south pole.
Why aren't planets in the solar system pulled into the sun's gravity?
What is the planets are spinning.
__________ uses electricity flowing through wires to generate a magnetic field.
As objects move away from each other and distance increases, what happens to the gravitational force?
What is decreases.