energy Flashcards
1
Q
what is kinetic energy?
A
the amount of energy that a moving object has
2
Q
what is power?
A
the rate at which energy is transferred, or the rate at which work is done.
3
Q
energy transfers in a closed system?
A
the total energy always stays the same
4
Q
how can you reduce unwanted energy transfers?
A
use lubrication or use thermal insulation
