Work,energy And Power Flashcards
When is work done
Work is done when a force acts on an object and causes it to move in a direction parallel to the force
What is mechanical energy
The sum of the total gravitational potential energy and total kinetic energy of an object
What is the law of conservation of mechanical energy
The total mechanical energy of an isolated system remains constant
State the work energy theorem
The total work done on an object is equal to the change in kinetic energy of the object
What is power
Power is the rate at which work is done
What is a non conservative force
A force for which the work done in moving an object between 2 points depends on the path taken
What is a conservative force
A force for which the work done in moving an object between two points is independent of the path taken
