Energy Vocab

Match the following

• a machine that combines two or more simple machines

• complex machine

• the mechanical advantage of an idealized machine that loses no energy to friction

• efficiency

• the ability to do work

• energy

• energy acquired by doing work against gravity

• gravitational potential energy

• output work divided by input work

• ideal mechanical advantage

Match the following

• effort force multiplied by the distance over which it is applied

• law of conservation of energy

• the metric unit for work and energy; equal to 1 newton meter (N∙m)

• kinetic energy

• states that energy is neither created nor destroyed

• inclined plane

• energy of motion

• joule

• a simple machine consisting of a slope

• input work

Match the following

• kinetic or potential energy

• potential energy

• the number of times the input force is multiplied

• lever

• output force multiplied by the distance over which it acts

• output work

• stored energy

• mechanical energy

• a simple machine consisting of a rigid arm that pivots on a fulcrum

• mechanical advantage

Match the following

• a simple machine consisting of a rope that passes over one or more grooved wheels

• power

• a machine that makes work easier by changing the amount or direction of force required to move

• pulley

• the rate at which work is done

• watt

• the metric unit of power; equivalent to joules per second

• simple machine

• a simple machine consisting of a spiral inclined plane

• screw

Match the following

• a simple machine consisting of a rod fixed to the center of a wheel

• wheel and axle

• force multiplied by distance

• wedge

• a simple machine consisting of two back-to-back inclined planes

• Miss Dominguez

• states that the net work done on a system equals the change in kinetic energy

• work

• an awesome teacher

• work–energy theorem