the conservation of energy Flashcards

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1
Q

What is the equation for change
thermal energy

A

E = mc x change in termperature

c is the specific heat capacity of material

mass x termparature change x specific heat capacity

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2
Q

What is the equation for nuclear energy

A

E = mc^2

c is speed of light

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3
Q

What is the equation for elastic potential energy

A

1/2 Fe

F is the force

e is the extension of material

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4
Q

whats an example of elastic potential energy

A

the work done in stretching an elastic material is stored as elastic potential energy

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5
Q

define a closed system

A

any system which all the energy transfers are accounted for. Energy or matter cannot enter or leave a closed system.

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6
Q

define the principle of conservation of energy

A

The total energy of a closed system remains constant.

Energy can neither be created nor destroyed, it can only be transferred from one form to another.

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