Electricity Flashcards
What is static electricity
An in balance of electric charge on the surface of an object
A positive object has more ____ than _____
More protons than electrons
A negative object has more ____ than ___
More electrons than protons
How many electrons and protons does a neutral object have
The same amount of protons and electrons
What happens between positive and negative objects
They attract
What happens between two negative objects
They repel
What happens between two positive objects
They repel
What happens between a positive and a neutral object
They attract
What happens between a negative and neutral object
The attract
What is electric discharge
When the build up of excess charge on one object is transferred to another object
What are the Three main methods of charging an object
Static, induction, conduction
What are two types of electric discharge
Sparking & grounding
What is sparking
When the charge “jumps” not by touching
What is grounding
When the charge is discharged to a conductor that can take the excess charge into the ground
What is current electricity
The controlled flow of electrons through a conductor
What is a circuit
A continuous path in which electrons can flow
4 essential parts of a circuit
- cell
- load
- switch
- wire
What is current
The measure of Electron flow going past a given point in the circuit
What is current measured in
Amperes
What is voltage
The amount of energy electrons are carrying in a circuit
What is voltage also called
Potential difference
What is voltage measured in
Volts
What is resistance
How much a device slows down the flow of current
Conductors have ____ resistance
Current travels ____
Low resistance
Current travels easily
