Chapter 7 Lesson 1
Presentation
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Physics, Science
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6th - 8th Grade
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Hard
Teresa Greiner
Used 12+ times
FREE Resource
6 Slides • 2 Questions
1
Chapter 7 Lesson 1
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What is Energy?
Energy is the ability to do work or cause change
When energy is transferred, the object upon which the work is done gains energy
Power = Energy Transferred/Time
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Power and Energy
Power depends on the amount of energy that is transferred in a certain amount of time
For example, if you have two objects moving something for the same distance but one moves it faster, then it has more power
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What are the Two Types of Energy?
The two basic types of energy are kinetic energy and potential energy
1. The energy an object has due to its motion is called kinetic energy
2. Energy that results from the position or shape of an object is called potential energy
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Kinetic Energy
The kinetic energy of an object depends on both its speed and mass
The faster an object moves, the more kinetic energy it has
Kinetic energy increases as mass increases
Kinetic Energy = 1/2 x Mass x Speed2
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Potential Energy
Potential energy means that it has the potential to do work
Potential energy related to an object's height is called gravitational potential energy
The gravitational potential energy of an object is equal to the work done to lift it to that height
Gravitational potential energy = Weight x Height
Elastic potential energy is the energy associated with objects that can be compressed or stretched
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Fill in the Blanks
The energy an object has due to its motion is called
Type answer...
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Fill in the Blanks
Stored energy that results from the position or shape of an object is called
Type answer...
Chapter 7 Lesson 1
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