module 5- conservation of energy Flashcards
work
the displacement of an object in the direction of an applied force
energy
the capacity to do work or to cause change
kinetic energy
is the energy objects have because they are moving
- the more mass an object has he more energy
- it also increases with velocity
potential energy
energy that is stored.
work equation
work=force X displacement
SI unit for work
joules
gravitational potential energy
energy that an object has due to its height above the ground
- it increases as mass increases.
chemical potential energy
energy that is stored in chemical bonds in a substance
elastic potential energy
energy that is stored in stretched springs, rubber bands, and similar objects
electromagnetic energy
light energy. energy that is carried by electromagnetic waves. ex. x-rays, ultraviolet light. infrared, microwaves, etc.
thermal energy
a measure of the motion of particles like atoms and molecules
law of conservation of energy
tells us that energy cannot be created or destroyed, it can only be transferred or converted from one to another.
