# Introduction to Electricity

### 29 terms by NolanKramer

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### Protons

parts of an atom that carry a positive charge

### Neutrons

parts of an atom that carry a neutral charge

### Electrons

parts of an atom that carry a negative charge

charged atoms

### Law of Electric Charges

like charges repel each other
& unlike charges attract

### 2 things that electric forces are effected by

1. size of charged particles
2. distance between charged objects

### Force

charged objects push/pull on other charged objects

### Electric Field

a region around a charged particle that can exert a force on another charged particle.

1. Friction
2. Conduction
3. Induction

### Friction

occurs when you rub something against something else

### Conduction

occurs when electrons are transferred from one object to another by direct contact

### Induction

occurs when charges are rearranged in an uncharged object without directly contacting a charged object

### Conductors

materials that electric charges can move easily through

### Insulators

materials that do not allow electric charges to flow through them

### Static Electricity

a build-up of charges in an object...(these charges eventually leave the object)

### Electric Discharge

a loss of static electricity as charges move off an object

### Electric Current

delivers electrical energy to machines
(definition: flow of charges)

### Batteries

made up of several cells that covert chemical energy into electrical energy

### Voltage

the difference in energy between 2 points of a moving charge

### Current

the total number of electrons flowing past a point each second

### Amps

unit of current measurement

### Resistance

opposition to a flow of electric charge (the higher the resistance, the lower the current)

### Ohms

unit of resistance measurement

### Electric Power

the rate at which electrical energy is used to do work

### Watt

unit of measurement for power

### Circuit

a complete closed path rghough wich electric charges flow

### Series Circuit

a circuit in which all parts are connected in a single loop (has only 1 path for current tol flow)

### Parallell Circuit

has more than one path for current to flow

### Circuit breakers

limit the amount of current flowing through a wire

Example: