APES exam review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| electromagnetic radiation | energy in the form of light and heat. that is emitted by the sun (primary energy source for earth)
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| potential energy | stored energy that has not been released
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| kinetic energy | the energy of motion
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| chemical energy | potential energy stored in chemical bonds
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| 1st law of thermodynamics | a physical law that states that when energy is transformed, the quality of the energy remains the same, however, its ability to do work deminishes
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| 2nd law of thermodynamics | a physical law stating that energy can neither be created nor destroyed but can change from one to another
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| temperature | the measure of the average kinetic energy of a substance
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| energy efficiency | the ratio of the amount of energy expended in the form you want to the total amount of energy that is introduced into the system
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| entropy | randomnes in a system
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| energy quality | the ease with which an energy source can be used for work
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| open system | a system in witch exchanges of matter or energy occur across system boundaries
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| closed system | a system in which matter and energy exchanges do not occur across boundaries
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| input | an addition to a system
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| output | a loss from a system
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| system analysis | an analysis to determine inputs, outputs, and changes in a system under various conditions
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| steady state | a state in which inputs = outputs, so that the system does not change over time
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| negative feedback loop | when a system responds to a change by going back to its original state
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| positive feedback loop | when a change in a system is amplified
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| joule | basic unit of energy
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| 10% rule | every time energy is transferred to a new level, 90% of the energy is lost, therefore, the next level only holds 10% of the energy from the previous level
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
sadiemaeb