Energy Flashcards
What is energy?
The ability to do work
What is potential energy?
How much energy something could potentially have (every type of energy can have a potential type)
Can there be a perfectly efficient system?
No
What is kinetic energy
Energy of motion
What is chemical energy?
Stored energy between atoms and molecules
What is thermal energy?
Heat energy
What is light energy?
Energy in the electromagnetic spectrum
What is nuclear energy?
Energy in a nucleus
- Fission: splitting atoms apart
- Fusion: fusing atoms together
What is the 0th law of thermodynamics?
When two systems cannot exchange heat they’re in thermal equilibrium
(no heat transfer = no thermodynamics)
- 0th law is essentially a starting block for thermodynamics
What is the 1st law of thermodynamics?
Energy can’t be created or destroyed
What is the 2nd law of thermodynamics?
All systems more towards entropy (chaos) not towards order
What is the 3rd law of thermodynamics?
The entropy of a perfect crystal at absolute zero is none
How many laws of thermodynamics are there?
4 laws
(0, 1, 2, 3)
What are the three types of energy transfer?
- Radiation
- Conduction
- Convection
