Work
Define: Work
What is: Work is a force applied over a distance.
This is the label for energy.
What is: Joules (J)?
This is what the Law of Conservation of Energy states.
Energy cannot be created, nor destroyed, only changed in form.
This is the definition of Kinetic Energy
What is: Energy of motion
This is the definition of potential energy
What is: stored energy?
Work is calculated with this formula.
What is: Work = Force x Distance
This is what TME stands for.
What is Total Mechanical Energy?
This is the amount of KE a ball has just before it hits the floor if it had 3000 J of PE when it was dropped.
What is: 3000 J
This is the formula for KE
KE=1/2MV^2 (Joules)
This is the PE of an object on the ground.
What is 0 J
This happens if the force does not cause the object to move.
What is: zero work is done?
The sum of these gives Total Mechanical Energy (TME).
What is: PE + KE
Potential Energy + Kinetic Energy
This is the formula for the Law of Conservation of Energy
What is: PE + KE = PE' + KE' + work
This has the greatest effect on the kinetic energy of an object.
What is: velocity
This is the formula for calculating potential energy
What is: PE=mgh
What is 5000 N*m (or 5000 J)
This is the definition of energy.
What is: the ability to do work?
This is true about the TME a pendulum has at every point along its swing.
What is: it stays the same
This is where the kinetic energy of a roller coaster will be greatest.
What is: at its lowest point <or> where PE is lowest.
This is the position on a roller coaster where potential energy will be greatest.
What is: the highest point
This much force is needed to do 1000 N*m of work on a 10 kg box.
What is: 100 N
This is the source of all energy on Earth.
What is: the sun?
This happens to the KE of an object as the PE of the object changes.
What is: it does the opposite. (as KE increases PE decreases, and vice versa)
This is the Kinetic Energy of a 2 kg mass moving at 5 m/s.
What is: 25 J
This is the amount of PE a 50 kg skier has when (s)he is 50 m from the bottom of the slope.
What is: 25,000 J
PE = (50)(10)(50)