Energy, Power & Transportation Technology...Kinetic Biomass Conversion Pg. 41 Energy, Power &...

Energy, Power & Transportation Technology

Chapter 2 Introduction to Energy

Use the Textbook Pages 39 52 to help answer the questions


Why You Learn So Well in Tech & Engineering Classes

Energy, Power & Transportation Technology 1. The study of energy is important because __________ __________ about

the development of energy resources and associated technologies will have to be made in your lifetime.

Good Jokes Serious Decisions Easy Solutions

Pg. 39

Energy, Power & Transportation Technology 2. __________________ energy sources can be regenerated in a relatively short period of time. Examples of these resources would be: ________________, ________________, ______________

Renewable Nonrenewable Inexhaustible

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Energy, Power & Transportation Technology 3. ________________________ energy sources cannot be replaced once they

are used. Examples of these resources would be: ________________,_________, ______________ ______

Renewable Nonrenewable Inexhaustible

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Energy, Power & Transportation Technology 4. ____________________________ energy sources are those that will never

run out. Examples of these resources would be: ________________, ________________, ______________

Renewable Nonrenewable Inexhaustible Pg. 41


5. Energy can be a type called _______________ energy, which is stored up energy, waiting to happen.

Potential Kinetic Biomass Conversion

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Energy, Power & Transportation Technology 6. Energy can be a type called _______________ energy, which is energy in

motion or moving energy.

Potential Kinetic Ocean Thermal Energy Conversion

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Energy, Power & Transportation Technology 7. Energy is found in 6 forms in our environment:

(M) ______________ (E) _____________ (C) _______________ (H) ______________ (N) _____________ (L) _______________

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Energy, Power & Transportation Technology 8. The most basic unit of measure for heat energy is the:

____________ ____________ _______ (Btu). 1 Btu is the quantity of heat needed to raise 1 pound of water 1 Fº 1 Btu is about the amount of heat energy stored in 1 kitchen match

British Thermal Unit Burger Thermal Unit Bituminous Thermal Unit

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Energy, Power & Transportation Technology 9. The organization of nations committed to the strength & success of the oil

market is known as: OPEC or the ___________________ of ________________ ______________ _____________

Original People Excavating Coal Organization of Petroleum Exporting Countries Organization for the Preservation of Economic Chaos

42 gallons in 1 barrel of crude oil

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42 gallons in 1 barrel of crude oil

Energy, Power & Transportation Technology 10. An ___________ is a restriction of trade with a country for political reasons.

Tariff Trade Wind Embargo Pg. 45

Energy, Power & Transportation Technology 11. Energy __________ involves making better use of available energy supplies.

Conversation Conversion Conservation

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These are “No Cost” energy saving measures that you can take

Energy, Power & Transportation Technology 12. Energy ______________ is the changing of one form of energy into another.

Conversation Conversion Conservation

Can you name the energy conversions taking place

in a motor vehicle?

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13. The term, Energy ________________, expresses the extent to which one form of energy is usefully converted into another form of energy.

(Examples: heat into mechanical energy or heat into light energy)

Efficiency Effervescence Everlasting

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Energy, Power & Transportation Technology 14. ____________ is a measure of the unavailable or lost energy

in a closed system of conversion.

Entropy Entoufee Entree

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Energy, Power & Transportation Technology 15. Using the chart on page 47, what converter is most efficient? ___________

Energy, Power & Transportation Technology 16. Using the chart on page 47, what converter is least efficient? ____________

The basic idea behind these bulbs is simple. Electricity runs through the filament. Because the filament is so thin, it offers a good bit of resistance to the electricity, and this resistance turns electrical energy into heat. The heat is enough to make the filament white hot, and the "white" part is light. The filament glows because of

the heat it incandesces. The problem with incandescent light bulbs is that the heat wastes a lot of electricity. Heat is not light, and the purpose of the light bulb is light, so all of the energy spent creating heat is a waste. Incandescent bulbs are therefore very inefficient. They

produce perhaps 15 lumens per watt of input power.


A fluorescent bulb uses a completely different method to produce light. There are electrodes at both ends of a fluorescent tube, and a gas containing argon and mercury vapor is inside the tube. A stream of electrons flows through the gas from one electrode to the other (in a manner similar to the stream of electrons in a cathode ray tube). These electrons bump into the mercury atoms and excite them. As the mercury atoms move from the excited state back to the unexcited state, they give off ultraviolet photons. These photons hit the phosphor coating the inside of the fluorescent tube, and this phosphor creates visible light. It sounds complicated, so lets go through it again in slow motion:


There is a stream of electrons flowing between the electrodes at both ends of the fluorescent bulb.

The electrons interact with mercury vapor atoms floating inside the bulb. The mercury atoms become excited, and when they return to an unexcited state

they release photons of light in the ultraviolet region of the spectrum. These ultraviolet photons collide with the phosphor coating the inside of the bulb,

and the phosphor creates visible light. The phosphor fluoresces to produce light.

A fluorescent bulb produces less heat, so it is much more efficient. A fluorescent bulb can produce between 50 and 100 lumens per watt. This makes fluorescent bulbs four to six times more efficient than incandescent bulbs. That's why you can buy a 15watt fluorescent bulb that produces the same amount of light as a

60watt incandescent bulb.



17. Besides particulate emissions, what 3 harmful substances condense & contribute to acid rain?

(CO 2 ) _______ __________,

(NOx) ________ _________,

(SOx) ________ _________

Carbon Dioxide Nitrogen Oxides Sulfur Oxides

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Energy, Power & Transportation Technology 18. When the layer of gases in our atmosphere does not allow the heat from

sunlight striking the earth to escape as it once did, this is referred to as the ________________________ effect.

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Energy, Power & Transportation Technology 19. Gases produced by burning fossil fuels will lead to a phenomenon called

___________ _________.

Cool Earth Global Cooling Global Warming Pg. 48

Energy, Power & Transportation Technology 20. ___________________ (reusing or remanufacturing) is a method of energy

conservation that saves money and energy. It can be done at any level from personal to industrial to country or global!

Remaking Recycling Redundant

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21. Give at least 3 ways that you or your family could or actually are recycling or conserving energy: 1) _____________ 2) _____________ 3) _____________


Perform a Home Energy Audit


Important Concepts, Definitions & Terms to Know

Class Notes & Priority Items to Know for Tests

Main Ideas

__________

__________

__________

Supporting Details

________________

________________

________________

TOP CRISS 2 Column Notes




TOP CRISS Highlight Your Study Guides Before Tests

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