Unit5 energy&matter liu
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Transcript of Unit5 energy&matter liu
![Page 1: Unit5 energy&matter liu](https://reader034.fdocuments.in/reader034/viewer/2022052622/558e5ef61a28abd01c8b4569/html5/thumbnails/1.jpg)
Unit 5: What is Energy?
Ms.Liu
Biology
1/31/12
![Page 2: Unit5 energy&matter liu](https://reader034.fdocuments.in/reader034/viewer/2022052622/558e5ef61a28abd01c8b4569/html5/thumbnails/2.jpg)
Atoms
• Smallest building blocks of life
• Everything is made up of atoms
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Matter
What is matter?
• Anything with mass!
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Energy
• The ability to do “work”
• Energy can be quantified (potential, kinetic energy)
• ENERGY IS STORED IN MATTER!
–Has the ability to “change” matter
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Kinetic vs. Potential
• Kinetic energy = Energy based on the MOVEMENT of the object
• Potential energy = Energy based on the POSITION of the object
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Energy or Matter?Atom
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Energy or Matter?Kinetic…
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Energy or Matter?Cooling effect
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Energy or Matter?STEAK
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Energy or Matter?Fire
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Energy or Matter?Candy (glucose!)
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Energy or Matter?Potential
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Energy or Matter?Magnetic…
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Energy or Matter?Horchata
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Energy or Matter?Nuclear explosion!
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Reactions
• Endothermic =
• Exothermic =
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Extra Credit for Exam (+5)
• Create a comic strip:
1. Explains the transfer of energy in both an exo-and endo-thermic reactions
2. Must have at least 5 boxes
3. Name and period in the top right-hand corner
4. Due before next exam on Friday, Feb. 10th
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