Work energy Flashcards
What is the equation for work done?
work done = force x distance
work done = energy transferred
What is kinetic energy?
The energy of a moving object
What is gravitational potential energy?
The energy an object has because of it’s position (usually its height above the ground)
What happens when a force acts on a moving body?
Energy is transferred, although the total amount of energy remains the same
What is Hooke’s Law?
When a force is applied to a material that is attached at one end, or if forces are applied to both ends of the material in opposite directions, the material will stretch
What is the equation for Hooke’s law?
force = spring constant x extension
In words:
The extension of a material is directly proportional to force
What does the area under a force-extension graph represent?
work done
