the law of conservation of energy Flashcards

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1
Q

what is energy

A

the capacity to do work or provoke a change

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2
Q

is energy easy to measure directly

A

no

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3
Q

what other change is accomplished through a change in energy

A

a change of state

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4
Q

what’s the unit of energy

A

Joule (J)

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5
Q

what does 1J correspond to

A

the energy needed to lift an object weighing 1Newton at a distance of 1Meter

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6
Q

what is the mass of an object weighing 1newton on earth

A

100grams

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7
Q

what is energy transformation

A

changing from one type of energy to another

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8
Q

what is the transfer of energy

A

movement of energy from one place to another

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9
Q

what is the law of conservation of energy

A

energy can be neither created nor destroyed only transferred or transformed. the total amount of energy in a closed system remains constant

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