Form, Structure and Quantity of Matter
Thermodynamics
The Flow of Energy Through Systems
Renewable Energy Sources
Non-Renewable Energy Sources
100
Matter cannot be created or destroyed in an isolated system.
What is the Law of Conservation of Matter?
100
Energy can be neither created nor destroyed.
What is the First Law of Thermodynamics?
100
Kinetic (motion), gravitational (gravity), potential (stored energy), chemical potential (stored in chemical bonds), electrical (energy derived from chemical bonds), nuclear energy (energy obtained from nuclear fission or fusion).
What are kinetic, gravitational potential, chemical potential, electrical, nuclear energy?
100
Expensive, etc.
What is a con of solar energy?
100
Toxins released in the coal mines.
What is a danger associated with coal mining?
200
Matter and energy exchange within system boundaries.
What is a closed system?
200
When energy is transformed, the quantity of energy remains the same, but its ability to do work diminishes.
What is the Second Law of Thermodynamics?
200
Heat capacity, or thermal capacity, is the measurable physical quantity of heat energy required to change the temperature of an object by a given amount.
What is specific heat capacity?
200
Completely renewable, etc.
What is a pro of wind energy?
200
Water disturbance.
What is a concern associated with fracking?
300
British Thermal Units. It is the amount of energy needed to cool or heat one pound of water by one degree Fahrenheit.
What is a BTU?
300
Ratio of amount of work that is done to the total amount of energy that is introduced.
What is energy efficiency?
300
Energy is the ability to do work. i.e. the more energy a device has, the more work it can do. Power is work over time. The power is how much work can be done in a unit time. Energy is in Joules Power is in Watts, aka Joules/seconds
What is the difference between power and energy?
300
Use of fuel to generate electricity and produce heat.
What is cogeneration?
400
All systems move toward randomness rather than toward order.
What is entropy?
400
Exchanges of matter or energy occur across system boundaries.
What is an open system?
400
Unlike in a battery, the reactants are continuously added to the cell so the cell produces electricity for as long as it is supplied with fuel.
What is the difference between a battery and a fuel cell?
400
Technique that takes advantage of solar radiation to maintain a comfortable temperature in the building.
What is passive solar energy?
400
The use of fuel to generate electricity and produce heat.
What is the cogeneration?
500
When inputs equal outputs.
What is a steady state?
500
(Energy Obtained from the fuel)/(Energy Invested to obtain the fuel)
What is EROEI?
500
Electric current applied to water to split it into hydrogen and oxygen.
Explain electrolysis.
500
Capture energy from the sun as light, not heat, and convert it directly into electricity.
What are photovoltaic solar cells?
500
Conversion of coal to liquid fuel.
What is CTL?
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