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Electricity
Science
| Question | Answer |
|---|---|
| What is electricity? | A form of energy caused by moving electrons. |
| When do ions form? | When atoms gain or lose electrons. |
| What does the law of electric charges state? | That opposite charges attract, and that like charges repel. |
| What is static charge? | The build up of electrons in an object. |
| When rubbing a balloon on your head, your _____ gives ______ to _______. | hair, electrons, balloon. |
| What is electric discharge? | The rapid movement of excess charge from one place to another. |
| Give an example of excess charge. | Lightning. |
| Lightning rods (Grounding) _____ excess charge. | Drain. |
| During a thunderstorm, _____ build up at the top of the cloud, and _____ build up at the bottom. | Protons, electrons. |
| During a thunderstorm, the negative part of the clouds take electrons from the ground, becoming negatively charged. This causes ______. | Lighting (excess charge.) |
| Can lightning happen between clouds? | Yes. |
| What is electric current? | The flow of electrons through a conductor. |
| The negative end of a battery has _______ ions . | negative. |
| Electrons move from _____ to _____. | more, less. |
| Do electrons want to even themselves out? | Yes. |
| What is an electric circuit? | A closed, conducting loop which electrons continuously flow. |
| What is a load? | The object that is getting powered. |
| What is a series circuit? | A circuit that only has one possible path |
| What is a parallel circuit? | A circuit that has multiple paths to follow. |
| The lower resistance, the _____ current. | Higher. |
| What is a conductor? | A material that electrons can flow through easily. |
| What is an insulator? | A substance that electrons can not move easily through. |
| What is a battery? | A series of electrochemical cells connected together. |
| When in an electric circuit, _______ _____ ______ inside the battery gets converted to _________ ____. | Stored chemical energy (potential), electrical energy. |
| What is electrolyte? | A substance that dissolves in water to form a conducting solution. (It stores the chemical energy.) |
| What is voltage? | The measure of how much electric energy an electron in a circuit can gain from a battery. (The pushing power.) |
| When voltage _____, current _____. | Increases, increases. |
| What unit is voltage measured in? | Volts. |
| Electric current depends on the amount of ______. | Electrons. |
| Current is measured with _______. | Amperes. (Amps.) |
| What is an ammeter? | A device that measures current. |
| What is resistance? | A force opposing the flow of electrons in a circuit. |
| Resistance is measured with _______. | ohms. |
| What are the four things that cause resistance? | Length(longer- more), Width (thinner-more), Material (poor conductors), temperature (hotter) |
| What is Ohm's law? | V divided by R= c |
Created by:
emarciante