lesson 9- energy conversions Flashcards
(7 cards)
1
Q
mechanical energy
A
sum of potential and kinetic energy at any point
2
Q
is mechanical energy constant throughout energy transfer?
A
yes
3
Q
the conservation of energy cannot be
A
created or destroyed
4
Q
law of conservation
A
amount of energy in a given situation remains the same
5
Q
can energy be converted?
A
no, it can only be transferred
6
Q
what is maximum potential energy equal to?
A
maximum kinetic energy
7
Q
pendulum example
A
lifting pendulum = work being done.
- work is then stored at gravitational potential energy as the pendulum is transferred to Ek the pendulum speeds up. the mid-point is where the kinetic energy and the energy potential are the same
