Energy Notes

What is Kinetic Energy?

• Energy of Motion

• Stored Energy

• Object Possessed by a Gravitational Field

• Energy Stored in Chemical bonds

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NGSS.MS-PS3-5

What is Potential Energy?

• Stored Energy in Chemical Bonds

• 15

• Energy in Motional

• Stored Energy

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What type of energy transformation occurs when using an electric pencil sharpener?

• electrical to mechanical

• sound to electrical

• mechanical to electrical

• potential to sound

Inside a power plant, coal is burned to produce hot gases. What type of energy conversion takes place as coal is burned to make hot gases?

• thermal to chemical

• chemical to thermal

• thermal to electrical

• chemical to mechanical

What is the law that states that energy cannot be created or destroyed only transform form one energy to another?

• Law of Conservation of Energy
• Law of Gravity
• Law of Inertia
• None of these

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NGSS.MS-PS3-5

What do we call a change from one form of energy to another?

• Energy form
• Energy transformation
• Kinetic energy
• Potential energy

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NGSS.MS-PS3-4

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What kind of energy is represented in the picture?

• Thermal
• Chemical
• Sound
• Nuclear

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As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• Both the potential energy and kinetic energy decrease
• The potential energy decreases while the kinetic energy increases 
• The kinetic energy decreases while the potential energy increases 
• Bothe the potential energy and kinetic energy increase 

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A Steam Locomotive uses wood or coal, to create steam from water. This steam moves pistons, and thus, the train. Choose the best energy transformation below for a steam locomotive.

• Thermal --> Mechanical --> Chemical (plus heat)

• Chemical --> Thermal --> Mechanical (plus heat)

• Mechanical --> Chemical --> Thermal (plus heat)

• Electrical -> Chemical --> Thermal (plus heat)

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NGSS.MS-PS3-3

NGSS.MS-PS3-5

This appliance dries clothes primarily by converting —

• electrical energy to heat and mechanical energy

• mechanical energy to heat and electrical energy

• electrical energy to heat and light

• mechanical energy to heat and vaporization

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