Unit 9 Flashcards
What is needed for electricity to move through a circuit
A electrical source
What are the types of electrical sources that can be found in a circuit
Cells and generators
How does a cell deliver energy
It has a chemical reaction creating electricity
How does electricity flow through a circuit
Negative to positive poles
What triggers the chemical reaction inside of the cell
The cell has to be connnected to the circuit for the reaction to take place
What does the voltage tell us about the cell/battery
The amount of potential energy it has
What does the voltage do in a circuit
It moves charge through the circuit
What is current
It is the rate of charge
What is charge
Known to be what the current moves through the ciruit
What is the symbol for current
C
What is the symbol for potential difference
V
What is the unit for charge
Coulombs
What is resistance
It is the how a conductor can resist the flow of electrons
How does current move through a circuit when it has resistance
The voltage (potential difference) is used to push the current through the circuit
What happens to the voltage
It is lost or used up by the resistors of the circuit
