Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Electricity
4th grade electricity and magnetism
| Question | Answer |
|---|---|
| An _______ _______is the continuous flow of negative charges (electrons). | Electric current |
| The pathway taken by an electric current. | Circuit |
| A complete circuit where everything is connected. Electricity can easily flow through it. | closed circuit |
| An incomplete circuit, where there is some part of the circuit that is NOT CONNECTED. Electricity CANNOT flow through it. | open circuit |
| A material that does NOT conduct electricity well. Examples include rubber, plastic, and wood. | insulator |
| A material that DOES conduct electricity well. Examples include metals. | Conductor |
| In a _______ circuit, there is only one pathway for the current to flow. | Series |
| In a_________ circuit there are two or more pathways for current to flow. We use these circuits for almost everything because we want to be able to turn some things on and some things off at the same time. | parallel |
| Rubbing certain materials together creates ______ __________. When they are rubbed together the negative electrons move to one object, so that object gets a negative charge | static electricity |
| A discharge of static electricity in the atmosphere. It occurs because the atmosphere is negative and the ground is positive so they are attracted to one another. | lightning |
| A ________is anything that pulls iron or steel towards it. Certain iron-bearing metals attract other such metals (also nickel and cobalt). | magnet |
| A_______ _____ is an invisible force field around every magnet. Lines of force extend from the poles of a magnet in an arched pattern | magnetic field |
| The lines of force in a magnetic field are _________ at the poles or ends of the magnet. | strongest |
| The lines of force in a magnetic field are _________ at the middle of the magnet. | weakest |
| An __________ is a magnet that is created by a current flowing through a wire which creates a magnetic field. | electromagnet |
| ____ _________ conducted research to prove that lightning was really an electrical spark (static electricity) | Ben Franklin |
| _______ ________ discovered the magnetic field lines of force, electromagnets, and created the first generator | Michael Faraday |
| ______ ________ invented the light bulb. | Thomas Edison |
| Opposite ends of a magnet | attract |
| Like ends of a magnet | repel |
Created by:
MrLittle5
Popular Science sets