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20 Cards in this Set
- Front
- Back
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What is a mole? |
A unit of measurement in chemistry.
Mole to grams 1 mole=atomic mass
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Molar solution? |
1*mw(atomic masses)/liter(1000ml) |
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Who/when - theory of continental drift? |
Alfred wegener 1915 |
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Isotope and example? |
Element with a different mass and different number of neutrons
Ex. Carbon 12, carbon 13, carbon 14 (14^C) |
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What type of reaction occurs when temp of solutions decreases?
Temp increases? |
If mixture temp decreases- endothermic
If mixture temp increase -exothermic (Bc energy released) |
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What is entropy? Formula? What happens to entropy when temp increases? |
Measure of random activity in a system.
(Delta)S= (delta)Q /(delta)T Or Change in entropy=measure of heat/change temperature.
Temp rises=entropy roses. Ex- solid to liquid. |
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Power- unit? Formula? |
Watt Work/time |
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Work- unit? Formula? |
Joule
Force * distance |
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Force - unit? Formula? |
Newton Mass*acceleration |
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Potential energy |
Energy at rest |
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Kinetic energy |
Energy at motion |
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Friction |
Force in opposing direction. Holds back. |
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Gravitational force! What happens if distance between two objects doubled? |
If distance doubled between two masses--force is 1/4 of what is was |
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Variables that affect period of pendulum |
String length Size of arc Mass of Bob |
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Rock cycle |
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Relationship between rock and minerals |
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Major agents of erosion |
Water, wind, gravity, ice(glaciers) |
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Weathering vs erosion. |
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Earths layers |
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Types of boundaries |
Back (Definition) |
