Energy Flashcards
what is the law of the conservation of energy
that energy cannot be created or destroyed but only changed or transferred from one form to another
10 Energy forms
Kinetic
Light
Gravitational Potential
Thermal
Chemical
Nuclear
Elastic Potential
Electric
Sound
Magnetic
Which of the forms of energy is classified as an energy store
Gravitational potential
Chemical
Elastic potential
Thermal energy
Kinetic
what is the term that meant that means energy isn’t being transferred usefully into the surroundings
disipated
what happens when energy goes from one store to another
some of the energy is disipated into the surroundings.
the form of
-sound
-heat
what is a closed system
an isolated system in which no energy transfers take place out of or into the energy stores of the system
an example of a open system
pretty much anything that is in a space
describe the change to energy store that takes place when a ball falls in air
it will increase the thermal energy store of the surroundings
how can energy be transferred
by heating, waves, an electrical current, or by a force when it moves an object
what happens when an object falls
it gains speed, its store of gravitational potential energy decreases and its kinetic energy store increases
can energy be transferred between closed system
yes, energy can be transferred through energy stores, the total energy of the system is always the same
