Energy and Work Done Flashcards
What is Energy?
Energy is the ability to do work
What kind of things need energy to do work?
Living and non-living
What is work?
The use of a force to move an object in the direction of the force
When is work considered done?
There must be a force acting on it
The object must move
The object must move in the direction of the force
What affects the amount of work done?
The size of the force
The distance travelled by the object in the direction of the force
What is the unit of work?
Joule (J)
What does Work Done also refers to?
Energy transferred
What is the law of conservation of energy?
No energy is gained or lost during an energy transfer because energy is changed from one form to another.
What is the conservation of Energy?
The total amount of energy is conserved
