Law of Conservation of Energy
the definition of the law of conservation of energy
On a hill, where does a rolling car have the least amount of Ug?
At the bottom
What is the equation for Power? Make sure to include P, F, d, and t.
P = Fd / t
as a ball falls through the air, energy gets ________ from gravitational potential to kinetic
transformed
definition of kinetic energy
"moving" energy or energy due to motion
What kinds of energy are present when a mango is 3/4 of the way down its fall to the ground? Which energy type is more than the other?
Ug and KE. More KE than Ug because more velocity and less height
the type of energy that is stored in food and is the enrgy of molecular bonds
chemical
k
kinetic energy is based on ____ and ____ of the object (hint: think about the equation)
mass and velocity
Give an example of something that has energy and determine the type of energy it has.
Teacher discretion
how does the total amount of energy change as a skater rolls from the top of a ramp to the bottom?
it does not change
how can energy be stored? (2 ways)
in a spring/rubber band and in an object with a height
A 2 kg mass attached to a cart is pulled at a velocity of 5 m/s. What is its kinetic energy? (and units)
25 J
If a mouse applies a horizontal force to a heavy piece of cheese and the cheese does not move, did the mouse do work on the cheese?
No