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Chap.15 Science
| Qustion | Answer |
|---|---|
| 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 |