In your own words, describe what potential energy is. (Be ready to defend your answer.)
PEgrav = * *
If you double the height above the zero position, then you the PEgrav.
Defend your answer to #3. Why do you think you chose that one?
There is a ball that is 30m above the zero line that has a mass of 55kg. The ball current PEgrav =
PEspring = * *
If you double the amount of compression of a spring relative to its equilibrium position, then you the PEspring.
"An object possesses elastic potential energy if it is at a position on an elastic medium other than the equilibrium position."
Interpret this sentence and give 2 real-life examples of its meaning.