Forms of Energy
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Physics
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7th Grade
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12 Slides • 7 Questions
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Forms of Energy
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Essential Question
Explain how energy is transformed in terms of the Law of Conservation of Energy.
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There are many forms of energy, but today we are going to focus on Solar Energy
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Law of Conservation of Energy
Energy CANNOT be CREATED OR DESTROYED.
Energy may CHANGE form, but the TOTAL amount remains the SAME.
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Solar Energy is
Radiation from the Sun.
Capable of producing heat, causing chemical reactions, or generating electricity.
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Radiant/Solar Energy can be...
Absorbed
Transmitted
Reflected
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Major Energy Transformation in Life
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Major Transformation
Solar Energy is transformed into Chemical Energy (Food that plants makes)
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Let's Review
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Multiple Choice
According to the Law of Conservation of Energy, energy cannot be _________ or ____________.
destroyed, destroyed
created, saved
created, destroyed
lost, found
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Multiple Choice
Energy transformations occur when...
energy is created through conduction
energy changes from one form to another
two forces slide together that are touching
a chemical reaction takes place
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Multiple Choice
Energy from the sun is called ..................
Geothermal
Solar/Radiant
Hydroelectric
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Multiple Choice
The sun provides ____________ and ____________ energy that can be harnessed and used for solar power.
chemical, sound
mechanical, light
sound, light
light, thermal
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Multiple Choice
Which items would have this energy transformation: Radiant energy -> chemical energy?
tree growing fruit
person running
solar calculator
windmill turning
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Multiple Choice
What is the main purpose of photosynthesis?
To make food for plants
To create energy
To release oxygen
To absorb sunlight
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Multiple Select
Which of the following are TRUE statements? (Select ALL that apply)
Photosynthesis takes place in the chloroplasts of leaf cells
Photosynthesis means "making food using sun"
Photosynthesis can occur in the dark
All plants, plant-like protists, and some bacteria go through photosynthesis
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