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-PS3-4

NGSS.MS-PS3-5

Which energy transformation below matches?
A book falling?

• chemical to sound and heat
• kinetic to sound and heat
• electrical to sound and heat

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which energy transformation below matches?
Green plants taking energy from the sun to grow?

• chemical to mechanical
• chemical to heat
• light to chemical

• chemical to kinetic

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which energy transformation below matches?
Animals eating food and using it to move?

• electrical to potential
• chemical to mechaincal

• potential to chemical
• elastic to kinetic

Which energy transformation below matches?
Burning coal at a power plant to give us the energy we use at our houses?

• chemical to heat to electrical
• mechanical to chemical to sound
• electrical to chemical to heat

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NGSS.MS-PS1-2

Potential or kinetic?
Stretched bow and arrow?

• kinetic
• potential

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

Potential or kinetic?
Running?

• potential
• kinetic

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

What form of energy powers this toaster?

• Chemical energy

• Light Energy

• Kinetic Energy

• Electric Energy

What are the energy transformations that occur with the toaster oven?

• Radiant - heat - light

• Sound - thermal - heat

• Chemical - light- heat

• Electrical - thermal

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NGSS.MS-PS3-3

How do you feel about energy conversions?

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NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-3

NGSS.MS-PS3-4