Glossary of Physics Chapter 3435
Deck Info
Description
Tags
Other Decks By This User
 what is the formula for resistance?
 v
R = 
I
Resistance
voltage

Current
 what is the formula for power?
 Power = Current * voltage
 whar is the formula for energy?
 Energy = Power * time
E= P*T
 what is the formula for Current?
 charge
 = current
time
 what is the formula for voltage?
 Voltage = Current * Resistance
V= IR
energy

charge
 What is Electric Current?
 The flow of charge; measured in Amperes
 What does electric potential mean?
 energy per coloumb(J/C) at a location in an electric field; measured in volts and often called voltage
 Potential difference?
 difference in electric potential (voltage) between two points. Free charge flows when there is a difference, and will continue until both points reach a common potential.
 What does ampere's equal?
 charge = coulomb
 
time second
 What does potential difference, pressure difference, voltage potential and voltage difference have in common?
 potential difference, pressure difference, voltage potential and voltage difference:
ALL REFER TO VOLTAGE OR THE FORCE THAT MOVES IN A CIRCUIT
 What are 2 examples of voltage sources?
 Battery and Generators all are types of "electric pumps"
 What are 3 variables of delveloping Ohm's Law ?
 Resistance: measured in Ohm's lessing of flow of charge, restriction
Voltage: measured in volts; forcethat moves electrons in a circuit
Current: charge over times
*Charge is measured in coulombs
Time for this is seconds
 How is current and resistance inversely related?
 When resistance goes up
Current goes down
Current~ 1

Resistance
 What are the symbol for Current and Voltage, Resistance?
 Current = I
Voltage = V
Resistance= R
 How is current and voltage directly related?
 As voltage goes UP
Current goes DOWN
current~voltage
 What is ohm's law?
 I = V

R
Current = voltage

resistance
1 ampere = 1volt

1 ohm
Voltage= current * resistance
 What is the formula for ampere?
 ampere = volt
=
ohm
 how is voltANG and resistance DIRECTLY RELATED?
 AS VOLTAGE goes up RESISTANCE goes UP
 What is an other formula to find voltage?
 joule

coulomb
 What does force consist of?
 potential difference
electric pressure
pressure difference
 What does 1 Ampere equal?
 1 Amperes = 1COULOMB

seconds
Symbol is A
 1 watt = 1 v * AMPERE =electric power
energy over time = powers
watts is a unit of POWER  watts is a unit of POWER
 dc & ac
 A Direct Current (DC) referring charge flowing in one direction. A battery produces direct current in a circuit because terminals of the battery always have the same sign of charge.
Alternating Current (AC) electrons in the circuit move first in one direction then in the opposite direction, alternating back and forth rather than in fixed positions. This action is accomplished by alternating the polarity of voltage at the generator or other voltage source.
 watt / kilowatt
 Power is a watt, and kilowatt. Energy is kilowatthour. Power: watt, kilowatt; energy: kilowatthour.