Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Electrostatics |
The study of non-moving electrons |
|
|
Laws of charge |
Law of repulsion: same charges repel Law of attraction: opposite charges attract |
|
|
Friction and outcome |
Two materials rubbed against each other. One will be charged negatively the other positive |
|
|
Contact and outcome |
Charged object touches neutral object. Neutral will obtain the same charge as the original |
|
|
Induction and outcome |
Charged object put near (not touching!) a neutral object, which is grounded. Neutral will obtain the opposite charge of the original. |
|
|
Lightning: how it happens |
1. Ice and water particles seperate 2. negative charges fall down to Earth 3. Positive electricity rises from the Earth 4. They join and hit the ground |
|
|
Grounding |
Connecting a an object to the Earth with a conductor (ex. wire) to a metal rode buried in the ground |
|
|
Discharge at point |
Static wicks on air plane's are an example of this. The electrons pass through them and discharge in the air. |
|
|
Other ways of discharging objects |
Exposure to air. Humid days static leaks away quickly, cold dry days it leaks away slowly. |
|
|
Ohm's Law |
Voltage (V) divided by Current (I) = Resistance R Voltage divided by Resistance = Current Current x Resistance = Voltage V= Volts I= Amps R= Ohms |
|
|
Series circuit |
The energy goes through one route and the energy is shared throughout the circuit. If one light bulb goes out the rest will too. |
|
|
Parallel Circuit |
The energy goes through multiple paths and the energy isn't shared. If one light bulb goes off non of the others do |
|
|
What's the power source? |
Battery |
|
|
What is Resistance? |
The amount of force that opposes the flow of electrons. Measured in Ohms. |
|
|
What is Current? |
Flow of electric charge. Measured in Amps (A) |
|
|
What is Voltage? |
Potiential electrical difference. Measured in Volts (V) |
