One
Two
Three
Four
Five
100
Objects with opposite charges will __________________ each other.
What is attract?
100
Objects with the same charge will __________ each other.
What is repel?
100
the building blocks of matter
What are atoms?
100
a loop with no breaks through which electric current can flow
What is a closed circuit?
100
the number of paths in a parallel circuit
What is two or more?
200
the push or pull between objects that have different charges
What is an electric force?
200
this happens when positive and negative charges on objects that are close to each other are not balanced
What is static electric builds up?
200
In a series circuit, this will happen to other light bulbs in the circuit if one light bulb burns out
What is "the other light bulbs will go out"?
200
the number of paths in a series circuit
What is one?
200
a material or substancethat limits the amount of heat (or electricity) that passes through it
What is an insulator?
300
where a magnetic field is the strongest
What is "at both poles"?
300
this is produced when a coiled wire is spun around a magnet
What is electrical energy?
300
more turns in the metal coin of an electromagnet does this to its strength
What is "increases its strength"?
300
this type of circuit can handle appliances that use different amounts od electric current
What is a parallel circuit?
300
a coil of wire with many loops through which electric energy passes
What is an electromagnet?
400
the charge on a neutral material
What is zero? (It has no charge!)
400
a compass needle points in a north-south direct derection because it reacts to this
What is Earth's magnetic poles?
400
what scientists like Michael Faraday do with their discoveries
What is "share their investigation with other scientists"?
400
this happens when a magnet is broken into two pieces
What is "each magnet will still have its won north-seeking or south-seeking poles"?
400
This person's discovery provided evidence that electricity and magnetism are closely related.
Who is Oersted?
500
the type of particles that will build gather near the bottom of a cloud before energy is released as lightning
What are negative particles?
500
Copper is a good _________________ in a closed circuit.
What is conductor?
500
this happens to an electric current if a switch is open
What is "the current does not flow"?
500
In a doorbell, electromagnets help convert electric energy to ________________and then to _________________/
What is "electric energy to magnetic energy and then to mechanical energy"?
500
These may be powered by wind energy, falling water, steam or nuclear energy
What are generators?
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