Chaper 15 Flashcards
(14 cards)
1
Q
Energy
A
The ability to do work
2
Q
Potential Energy
A
Energy in position or arrangement that has the ability to do work. It has “potential”
3
Q
Kinetic Energy
A
Energy of motion
4
Q
Exothermic
A
Gives off heat EX: burning coal
5
Q
Endothermic
A
Needs heat to provide energy EX: decomposition of matter
6
Q
First law of thermodynamics
A
Energy cannot be created nor destroyed
7
Q
Second law of Thermodynamics
A
Heat always flows from a hot object to a cooler one
8
Q
Entropy
A
The measurement of energy diversion
9
Q
Fuel
A
A substance that burns easily and gives off energy
10
Q
Fossil Fuels
A
Coal , petroleum, natural gas that create energy
11
Q
Photovoltaic Cell
A
Units that convert sunlight into energy
12
Q
Biomass
A
Dry plant material that burns easily
13
Q
Power and Energy Calculation
A
1W= 1J/sec
14
Q
Renewable Energy Sources
A
Geothermal Wind and Water Solar Biodiesel Hydrogen
