Law of Conservation of Energy

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

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NGSS.MS-PS3-5

Which energy transformation below matches?
Water moving over a dam to move a generator?

• kinetic to chemical
• kinetic to electrical
• solar to electrical

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NGSS.MS-PS3-5

Which energy transformation below matches?
Green plants?

• chemical to mechanical
• chemical to heat
• solar to chemical

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NGSS.MS-LS1-6

Potential or kinetic?
Running?

• potential
• kinetic

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Potential or kinetic?
Stretched bow and arrow?

• kinetic
• potential

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NGSS.MS-PS3-2

When something is dropped, what type of energy transfer takes place?

• Kinetic -> Potential
• Gravitational Potential -> Kinetic -> Sound
• Electrical -> Chemical
• Heat -> Nuclear

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NGSS.MS-PS3-2

NGSS.MS-PS3-5

Imagine dropping a basketball. When would it have the most gravitational potential energy?

• When it is closest to the ground
• When it is at the highest point
• When it is halfway down
• It has the same amount of gravitational PE at all points

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NGSS.MS-PS3-2

Food has _______ potential energy that our bodies transform into kinetic energy.

• Elastic
• Nuclear 
• Gravitational
• Chemical

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NGSS.MS-LS1-7

Identify the correct energy transformation for the image below. 

• Chemical --> Radiant --> Thermal

• Sound --> Thermal --> Radiant

• Kinetic --> Potential --> Sound

• Electrical --> Sound --> Thermal

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NGSS.MS-PS1-6

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which object shows an energy transformation from electrical → kinetic → sound?

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