the law of conservation of energy Flashcards
1
Q
what is energy
A
the capacity to do work or provoke a change
2
Q
is energy easy to measure directly
A
no
3
Q
what other change is accomplished through a change in energy
A
a change of state
4
Q
what’s the unit of energy
A
Joule (J)
5
Q
what does 1J correspond to
A
the energy needed to lift an object weighing 1Newton at a distance of 1Meter
6
Q
what is the mass of an object weighing 1newton on earth
A
100grams
7
Q
what is energy transformation
A
changing from one type of energy to another
8
Q
what is the transfer of energy
A
movement of energy from one place to another
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
