A material that lets electricity travel through it easily.
What is a conductor?
100
A temporary magnet.
What is an electromagnet?
100
Which of the following is the best conductor of electricity?
- copper
- glass
-rubber
-plastic
What is copper?
100
Todd has attached solar panels onto the roof of his home that collect the sun's rays and convert it to energy to help power his home. What type of energy is this?
What is solar energy?
100
Why do lights go off when you flip off the switch?
Because you are opening the circuit.
200
An electrical charge that builds up in an object.
What is static electricity?
200
A path that has more than one way an electrical current can flow.
What is a parallel circuit?
200
Jack and his family visited a large dam, where they were told that the kinetic energy of falling water was changed to electrical energy. What kind of power did this dam produce?
What is hydroelectric power?
200
What example did we discuss of how a very strong electromagnet be used?
To move old cars in a junkyard.
200
Explain how a series and parallel circuit are different.
A series only has one pathway, while a parallel has more than one.
300
An object that attracts iron permanently.
What is a magnet?
300
A path that has only one way for an electrical current to flow.
What is a series circuit?
300
A stream of electrons moving through a copper wire.
What is a current?
300
What three things are needed to create an electromagnet?
What is a metal core, a wire to conduct electricity, and a power source.
300
How can you increase the strength of an electromagnet?
Wrapping the wire tighter around the core or adding thicker wire. You can also use a bigger wire.
400
The energy of a moving object.
What is kinetic energy?
400
A material that prohibits the flow of electricity.
What is an insulator?
400
The name of a path that has only one way for the current to flow.
What is a series circuit?
400
What kinds of matter can an electromagnet attract?
What is metal? (Steel, iron, nickel, etc.)
400
Suppose you are putting Christmas lights on your tree. Would you want them to be in a series circuit or a parallel circuit? Why?
Parallel, that way if one bulb burned out the whole strand wouldn't burn out too.
500
Energy an object has because of its ability to do work.
What is potential energy?
500
A material that slows down, but doesn't stop the flow of electricity.
What is a resistor?
500
Which is the best insulator of electricity?
-copper
-rubber
-iron
-nail
What is rubber?
500
Give two examples of how you can conserve energy at your home?
- Turn off the lights when you leave a room
-Only run dishwashers/washing machines when they are full
- Unplug items when they are done charging or you are done using them
I will take multiple answers.
500
What is the main power source we burn to create electricity?