A Change is Going to Come
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A Change is Going to Come. Energy at Work. What is Energy?. Energy is the ability to cause change. Objects can gain energy. A pot boiling is gaining heat energy. Objects can lose energy. A bowling ball loses mechanical energy when it hits the bowling pins. Energy appears in many forms.

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A Change is Going to Come

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A change is going to come

A Change is Going to Come

Energy at Work


What is energy

What is Energy?

  • Energy is the ability to cause change


Objects can gain energy a pot boiling is gaining heat energy

Objects can gain energy.A pot boiling is gaining heat energy.


Objects can lose energy a bowling ball loses mechanical energy when it hits the bowling pins

Objects can lose energy.A bowling ball loses mechanical energy when it hits the bowling pins.


Energy appears in many forms

Energy appears in many forms.

  • heat/thermal

  • light

  • sound

  • mechanical


Thermal energy

Thermal Energy

  • Moves molecules

  • Is felt as heat


Light energy

Light Energy

  • The primary source of light energy is the sun

  • Light energy produces heat


Sound energy

Sound Energy

  • All sound begins when something vibrates


Mechanical energy

Mechanical Energy

  • The energy of motion


You decide

You Decide

  • Which tasks have energy?

  • If so, what kind of energy?

    Thermal

    Light

    Sound

    Mechanical


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