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How Energy Transforms.

Published byAugustine James Modified over 6 years ago

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Presentation on theme: "How Energy Transforms."— Presentation transcript:

1 How Energy Transforms

2 Mechanical Energy Practice Question
13. What happens to the KE, PE, and TME of the object? (a) A marble begins at an elevated position on the top of an inclined ruler and rolls down to the bottom of the ruler. KE: PE: TME:

3 Mechanical Energy Practice Question
13. What happens to the KE, PE, and TME of the object? (b) A marble is rolling along a level table when it hits a note card and slides to a stop. KE: PE: TME:

4 Mechanical Energy Practice Question
13. What happens to the KE, PE, and TME of the object? (c) A cart is pulled from the bottom of an incline to the top of the incline at a constant speed. KE: PE: TME:

5 Mechanical Energy Practice Question
13. What happens to the KE, PE, and TME of the object? (d) A physics student runs up a staircase at a constant speed. KE: PE: TME:

6 Mechanical Energy Practice Question

7 Mechanical Energy Practice Question

8 Mechanical Energy Practice Question

9 Mechanical Energy Practice Question

10 Mechanical Energy Practice Question

11 Energy Skate Park

12 energy is always conserved
The mechanical energy of a system is conserved when there are no outside forces acting on the system. When there are outside forces acting on the system, these forces change the mechanical energy of the system. For example, friction turns mechanical energy into thermal energy. We find, however, that energy never appears or disappears randomly—it always comes from somewhere and goes somewhere. This means that the total energy is always conserved. So, while mechanical energy is not always conserved, the total energy is—you cannot gain or lose energy from nothing!

13 Visualizing Energy

14 Identifying Types of Energy

15 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 10: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

16 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 10: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation Acoustical Energy

17 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 10: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation)

18 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 10: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

19 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 10: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

20 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 9: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

21 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 9: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

22 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 9: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

23 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 9: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

24 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 9: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

25 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 9: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

26 Selected types of energy
There are many types of energy that we try to categorize and classify. Here are 10: Kinetic Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Thermal Energy Electric Energy Magnetic Energy Nuclear Energy Radiant Energy (Light or Radiation) Acoustical Energy

27

28

29 Energy Forms and Changes

30 Example of Energy Transfer
Hoover Dam (gravitational potential energy becomes kinetic, which becomes electric, etc.)

31 Example of Energy Transfer
Hoover Dam The Sun (nuclear energy becomes thermal, which becomes radiant, and so on)

32 Julius Sumner Miller

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