energy Flashcards
learn basics of energy (4 cards)
1
Q
what is the unit of energy?
A
joule(j)
2
Q
name two types on energy stores?
A
kinetic energy and gravitiational potential
3
Q
what is the formula for kinetic energy ?
A
2
1
mv
2
(half × mass × velocity squared).
4
Q
what does a Sankey diagram show?
A
how energy is Transfered and wasted in a system.