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Energy Unit:Quiz #2 (SY23)
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What does the Law of Conservation of Energy say?
Energy cannot be created or destroyed, just transferred or transformed
True or false; Energy can only be transformed according to the law of conservation”
False
Scenario 3- The flashlight is on for 3 minutes, at the end of the transformation the flashlight's PE has transformed into both Light & Thermal energy. The flashlight’s Light Energy is at a total of 80 J. How much Thermal Energy?
20 J
*total Energy is 100 J *Scenario 2- the moment you click on the flashlight switch, the flashlight’s PE from the battery begins to transform into KE. The battery's potential energy is at a total of 75 J. How much KE is present at this time?
225 J
*Total Energy is 100 J* Scenario 1- Before we turn on the flashlight, the flashlight has a total of 100 J of chemical potential energy. How much Kinetic energy is present at this time?
0J
True or false; Energy can only be transferred according to the law of conservation”
Flase
True or false; “A consequence of the law of the conservation of energy is that the total energy in the entire universe is constant.”
True
True or false; “Energy is never lost during an energy transformation, it just transfers out of the system into the surrounding system”
True
What is the energy transformation is taking place in the photo. THINK BEFORE AND AFTER "Use your Chart" 
Chemical energy → Light, Thermal, & Sound energy.
What type of Energy is being represented in the photo?
Sound Energy
What type of Energy is being represented in the photo?
Thermal Energy
What type of Energy is being represented in the photo?
Nuclear Energy
What type of Energy is being represented in the photo?
Electric Current Energy
What type of Energy is being represented in the photo?
Chemical Energy
What type of Energy is being represented in the photo?
Elastic Energy
What are the two main categories of Energy?
Potential & Kinetic Energy
Look at the roller coaster diagram, What location in the coaster ride does KE transform into GPE?
Location A
Look at the roller coaster diagram above, What location does GPE transform into KE ?
Location B


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