click below
click below
Normal Size Small Size show me how
SELMAN, CHAPTER 3
Physical Concepts of Energy
VOCAB | DEFINITION |
---|---|
INERTIA | the tendency of a resting body to remain at rest |
FORCE | push or pull on an object |
WORK | whenever a force is acts upon a body, work is done |
ENERGY | may be defined as the ability to do work |
KINETIC ENERGY | the energy of a moving body |
POTENTIAL ENERGY | stored energy, energy at rest |
LAW of CONSERVATION of ENERGY | changes forms, and cannot be created nor destroyed |
EINSTEIN'S THEORY of RELATIVITY | energy = mass x speed of light in air or vacuum squared (E = mc*) |
ELECTRIC MOTOR | converts electrical energy to mechanical energy |
BATTERY | converts chemical energy to electrical energy |
STEAM ENGINE | converts heats energy to mechanical energy |
GASOLINE ENGINE | converts chemical to mechanical energy |