Energy

Introduction to energy

Physics 2022-23

Energy is very very important for our everyday lives.

Do now: name 3 ways you've interacted with energy in the last 5 minutes.

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2 minutes

Energy

Learning Objective: Use the principle of conservation of energy to explain how energy can exist in multiple forms.

Language Objective: Define the conservation of energy principle.

Conservation of energy: energy cannot be created nor destroyed.

Scientist Du Chatelet used experimentation and observation to define this concept at E=1/2mv^2

Einstein later suggested that mass is equivalent to energy with the equation E=mc^2

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Learning Objective: Use the principle of conservation of energy to explain how energy can exist in multiple forms.

Language Objective: Define the conservation of energy principle.

Energy is SO important and is a major building block of society.

Energy resources are key limiting factors to economic growth.

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Learning Objective: Use the principle of conservation of energy to explain how energy can exist in multiple forms.

Language Objective: Define the conservation of energy principle.

Energy: the ability to do work.

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​Introduction to Potential and Kinetic Energy

Multiple Choice

What does conservation of energy mean and what are the two equations mentioned so far?

• Energy cannot be created or destroyed

  E=mc^2

  E=1/2mv^2

• Energy cannot be created or destroyed

  E=mc^2

  E=1/2mv

• Energy can be created with windmills

  E=mc

  E=1/2mv^2