In 1880 he invented a light bulb that burned for more than 1,500 hours.
Who is Thomas Edison?
100
A circuit that is on
What is closed circuit?
100
an object that allows electricity to flow through it, so the circuit is closed.
What is an conductor?
100
True or False
An electromagnet can be made by winding wire around
a pencil and connecting the wires to a battery
What is false
200
When one magnet pushes the other magnet.
What is repel?
200
A circuit that is off.
What is opened circuit?
200
objects that do not let electricity flow easily
What are insulators?
200
a temporary magnet made by wrapping a wire around a
steel nail and connecting the wires to a battery.
What is an electromagnet?
300
He build a telegraph line that could send messages between Baltimore, Maryland, and Washington, D.C.
Who is Samuel Morse?
300
circuits with two or more pathways
What are parallel circuits?
300
2 insulators of electricity
Answers will Vary
wood, plastic, rubber, yarn,
300
True or False
When you open the circuit the electromagnetic still works.
What is false?
400
Circuits with only one pathway and if one bulb is loosen the whole circuit doesn't work.
What is series circuit?
400
2 names of conductors
Answer will vary
What is steel, copper, aluminum, and brass
400
the description of an electromagnet.
What is something made of steel with wires wrapped around it and a closed circuit. When the electric current flows the
object made out of steel is a temporary magnet.
500
if one bulb is loosen the other bulb stays lit.
What is a parallel circuit?
500
An object that is a conductor of electricity BUT DOES NOT
ATTRACT a magnet!!!!
Answer will vary
brass, aluminum, copper BUT NOT steel or iron
500
Two things that can strengthen an electromagnet.
What is increasing the number of winds of the wire and increasing the amount of power (batteries).