Flashcards in Electricity Deck (23):

1

## What is voltage

### Electrical pressure (how much energy each electron has

2

## What is resistance and give an example

### Opposition to the flow of electrons, friction

3

## Why does a balloon stuck to a wall if you rub your hair first

### Electrons go from you hair to the balloon making t negative and then the positive nuclei are attracted to the balloons electrons so it sticks to the wall by static charge build up

4

## What is static electricity

### Non flowing electrons

5

## What is electric current

### Flow of electrons

6

## What is coloumbs laws

### The force between two charged particles is directly proportional to the amount of charge and inversely proportional to distance squared

7

## What does coloumbs law say about distance and strength of attractions between charges

### If the amount of charge on two part files doubled the force between then it is twice as much, if the distance is doubled then force between them is 1/4 of what it used to be

8

## What happens to the strength of atttaction between two charges particles if distance is doubled

### The force between them is 1/4 of what it was before

9

## What if the distance is cut in half

### 4x as much

10

## What if the strength of both charges doubled

### Then the force is 4x as much

11

## What is ohms law

### Relationship amount current, voltage and resistance

12

## How are pressure and voltage related

### More pressure equals more voltage

13

## How are voltage and current related

### More voltage equals more current

14

## How are resistance and current related

### More resistance equals less current

15

## What is current measured in

### Amperes

16

## What is resistance measured in

### Ohms

17

## Voltage measured in

### V

18

## Two types of static electricity can be made

### Static charge build up by friction and static charge build up by induction

19

## Induction

### Charged caused by electrons changing their position within a substance

20

## Series circuit

### All loads in a single file line connected by a sequential wires

21

## Parallel circuit

### Bulbs or loads are not in a single file line more than one path electricity takes to get to the positive end of the battery

22

## Current equation

### C=v/r

23