Phys Unit 8 -- Current Electricity Flashcards
Define energy:
The ability to do work.
Define kinetic energy:
Energy a moving object possesses due to its motion
Potential energy: (think of the word potential.)
the energy stored in an object.
Define electric potential energy:
The energy between charges.
What unit is Voltage measured in, and what can it be measured with?
Volts, and can be measured with a voltmeter.
Voltage contains what type of energy?
Electric potential energy.
A battery is a source of….. (what type of energy?)
Electric Potential Energy
What is chemical energy used for?
The separation of positive and negative charges.
What do AA, AAA, C and D batteries have in common? What do they differ in?
In common: all have a 1.5 V voltage!
Different: different amounts of charge.
Define current electricity.
A continuous movement of charge through a conductor.
What does resistance do?
Converts electric energy to other forms of energy.
Name one property of resistance.
Slows down electrons.
What is a resistor?
An electrical component that slows electrons with a specific resistance.
Which three components does Ohm’s law relate? Give units.
Voltage (V), Current (A), Resistance (Ω)
Give another name for Voltage.
Electrical Potential Difference.
