Question | Answer |
the scientific study of matter, energy, space, time and the relations between them | physics |
the use of force to move an object over a distance | work |
the unit used to measure work | joule |
one ____ of work is done when a force of one newton moves an object has due to its position | joule |
stored energy or the energy an object has due to its position | potential energy |
the energy of motion | kinetic energy |
a moving object has the most __________ at the point where it moves the fastest | kinetic energy |
a combination of kinetic energy and potential energy an object has | mechanical energy |
a law stating that no matter how energy is transferred or transformed, all of the energy is still present in one form or another | Conservation of energy |
the rate at which work is done | power |
the unit used to measure power | watt |
one __ is equal to one joule of work done in one second | watt |
the unit of measurement for engines in one second | horsepower |
one ______ equals 745 watts | horsepower |
states that energy can be transferred, transformed, but never lost | law of conservation |
potential energy is transformed into ______, which is energy of motion | kinetic energy |
_____ is the rate at which work is done | power |
equals force times distance | work |
two factors needed to know to calculate how much was done in any situation | size of force and distance over which the force was applied |
newton meter | joule |
the energy associated with electrical and magnetic interacations | electromagnetic energy |
stored energy | potential energy |
the potential energy stored in the nucleus of an atome | nuclear energy |
potential energy + kinetic energy | mechanical energy |
energy stored in a chemical bond that holds chemical compounds together | chemical energy |
the energy of motion | kinetic |