What happens when positive and negative charges no longer balance?
Static Electricity
100
Electrical current flows in one path only in this type of circuit.
A series circuit.
100
Where is a magnetic field the strongest?
At both poles
100
What is a coil wrapped around an iron core called?
An electromagnet
100
What type of energy is formed by vibrating object?
Sound Energy
200
What happens to an electric field when you get closer to the charged object?
It gets stronger.
200
How many paths are there in a parallel circuit?
Two or more.
200
What do we call a force that pushes or pulls magnetic materials?
Magnetism
200
How do we use electromagnets?
Lift heavy materials, doorbells, complex machines, electronic gadgets
200
Where would you be traveling in complete silence?
Outer Space
300
What effect will a charged object have on an object with the opposite charge?
The objects will be attracted to each other.
300
What do we call an electric charge in motion?
An electric current
300
How does a compass work?
The compass needle responds to Earth's magnetic field. It points toward Earth's magnetic poles.
300
A generator turns mechanical energy into this kind of energy.
Electrical energy.
300
Who is the University of Kentucky's men's basketball team's leading scorer?
Jamal Murray
400
What is the space around electrically charged objects called?
An electric field
400
What type of material can be a good conductor?
Copper wire, silver, most metals
400
The invisible field around a magnet is called what?
Magnetic Field
400
How many poles does an electromagnet have?
Two
400
Name one country that Mrs. Hampton has lived in (besides the United States).
Canada, Indonesia, Thailand
500
What are the building blocks of matter?
Atoms
500
What happens to an electric current at a switch?
If the switch is closed, the current flows. If the switch is open, the current does not flow.
500
Every magnet has how many poles?
Two
500
How can you increase the amount of electric current produced by a magnet?
The coiled wire of the magnet can be moved more quickly OR the number of coiled loops around the magnet can be increased.
500
List the following materials in order from the material that sound travels fastest through to the material that sound travels slowest through: wooden block, cold air, pond water.