energy Flashcards
study
kinetic energy
the form of energy that it possesses due to its motion.
potential energy
the energy held by an object because of its position relative to other objects.
elastic potential energy
the mechanical potential energy stored in the configuration of a material or physical system.
chemical potential energy
the energy stored in the chemical bonds of a substance.
gravitational potential energy
the potential energy a massive object has due to its position in a gravitational field.
mechanical energy
the sum of potential energy and kinetic energy.
law of conservation of energy
The total energy of an isolated system remains constant.
work
activity involving mental or physical effort done in order to achieve a purpose or result.
power
move or travel with great speed or force.
machine
an apparatus using or applying mechanical power and having several parts, each with a definite function and together performing a particular task.
input force
the force exerted on an object by a simple machine.
output force
he force exerted on an object by a simple machine
mechanical advantage
a measure of the force amplification achieved by using a tool, mechanical device or machine system.
efficiency
the state or quality of being efficient.
simple machine
a mechanical device that changes the direction or magnitude of a force.
