Energy Vocab

Match the following

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

• ideal mechanical advantage

• a machine that combines two or more simple machines

• gravitational potential energy

• output work divided by input work

• complex machine

• the ability to do work

• energy

• energy acquired by doing work against gravity

• efficiency

Match the following

• states that energy is neither created nor destroyed

• input work

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

• kinetic energy

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

• joule

• a simple machine consisting of a slope

• law of conservation of energy

• energy of motion

• inclined plane

Match the following

• stored energy

• mechanical energy

• the number of times the input force is multiplied

• potential energy

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

• mechanical advantage

• output force multiplied by the distance over which it acts

• lever

• kinetic or potential energy

• output work

Match the following

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

• pulley

• a simple machine consisting of a spiral inclined plane

• simple machine

• the rate at which work is done

• power

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

• watt

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

• screw

Match the following

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

• wheel and axle

• force multiplied by distance

• work

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

• wedge

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

• Miss Dominguez

• an awesome teacher

• work–energy theorem