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Electrostatics
Question | Answer |
---|---|
Electrostatics | Electricity at rest |
Electric Current | The motion of electric charges |
Name two possible charges on a charged particle. | Protons, Electrons |
Atom | smallest component of an element |
Charging by contact | when a charged rod is placed in contact with a neutral object, some charge will transfer to the neutral object |
Charging by induction | when you bring a charged object near a conducting surface and the particles become rearranged |
Conductor | a device designed to transmit electricity, heat, etc. |
Coulomb | unit of electrical charge equal to the amount of charge |
Electrically polarized | one side of the atom is induced to be slightly more positive than the oposite |
insulator | material with negligible, thermal, or electrical conductivity. |
ion | particle that is electrically charged |
Protons | positively charged |
Electrons | negatively charged |
An electric force can either be.. | attractive or repulsive |
What is known about electrons? | Repels other electrons. All electrons identical. |
Compare contrast protons and neutrons | neutron has a slightly greater mass than a proton |
What is important about a normal atom? | There is no net charge, there are as many electrons as there are protons. |
Which electrons are most easily lost? | the outermost electrons |
What is an ion? | A charged atom |
What is the conservation of charge? | electrons are not destroyed, but transfered |
When does an object become charged? | It gains protons |
What are two methods of charging? | Charging by friction, Charging by contact. |
Grounding | allowing charges to move freely along a connection between a conductor and the ground(stopping the charge) |
What is lighting? | an example of induction |
Why are metals good conductors of heat and electricity? | It's electrons are flowing further away from the nucleus, which makes them easier to transfer |