energy types
what is potential energy
a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
the strength and vitality required for sustained physical or mental activity
what is energy
what is heat energy
energy that is transferred from one body to another as the result of a difference in temperature
what is joule
what is sound energy
the result when a force, either sound or pressure, makes an object or substance vibrate.
a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.
what is a pulley
activity involving mental or physical effort done in order to achieve a purpose or result.
what is work
a type of kinetic energy caused by moving electric charges
what is watts
what is kinetic energy
a form of energy that an object or a particle has by reason of its motion
wheel and axle
a roughly circular line, route, or movement that starts and finishes at the same place.
what is circuit
what is chemical energy
the energy which is stored in the bonds of chemical compounds (molecules and atoms)
what is green energy
energy that can be produced using a method, and from a source, that causes no harm to the natural environment
what is mechanical energy
the energy of either an object in motion or the energy that is stored in objects by their position
inclined plane
a ramp that assists moving heavy objects up and down heights.
what is a battery
a device that converts chemical energy contained within its active materials directly into electric energy by means of an electrochemical oxidation-reduction (redox) reaction
Mechanical Efficiency
a measure of how effectively the machine converts the input energy into useful output energy
what is conserveration
prevention of wasteful use of a resource.
what is light energy
a kind of kinetic energy with the ability to make types of light visible to human eyes
wedge screw
inclined planes wrapped around a cylinder
what is a generator
a device that converts mechanical energy (itself derived from coal, oil, natural gas, wind, water, nuclear reactions or other sources) into electrical energy
what is Mechanical Advantage
a measure of the ratio of output force to input force in a system
what is fulcrum
the point on which a lever rests or is supported and on which it pivots.