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Chap.15 Science

QustionAnswer
Atom The smallest particle of matter
Electric charges Are units of electricity very tiny particles carry
What are two types of electric charges Positive and negative
What are same and different charges called like and unlike charges
what is electrically neutral matter Matter that has the same amount of negative and positive charges
What is the 3 types of charged matter Electrically neutral, negatively charged and postivliy charged
How do unlike and like charges behave Unlike charges attract like charges repell
Static electricity Build up electric charge
electric current Continuous flow of electric charge
Conductor Negatively charged particles that move easily though these materials
Insulators Materials that electric charges do not flow though easily
Electric circuit The pathway that electric current follows
Simple circuit When the parts of the circuit are connected with no gaps, the bulb will light.
Switch Allows you to open and close a circuit without disconnecting any wires.
Series Circuit The parts are connected so the electric circuit passes though each part one after another in one pathway.
Parallel Circuit The parts are connected so the current passes though one or more pathway
Electric cell A device that changes the thermal energy
magnet an object that attracts to many metals mainly iron
Magnetic poles The force of a magnet is greatest at 2 areas called this.
How does earth act like a magnet It has 2 poles and iron in it's core with a field
Created by: 21kbrown1