Energy Vocab

Match the following

• output work divided by input work

• energy

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

• complex machine

• the ability to do work

• ideal mechanical advantage

• energy acquired by doing work against gravity

• efficiency

• a machine that combines two or more simple machines

• gravitational potential energy

Match the following

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

• kinetic energy

• states that energy is neither created nor destroyed

• law of conservation of energy

• energy of motion

• input work

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

• inclined plane

• a simple machine consisting of a slope

• joule

Match the following

• kinetic or potential energy

• mechanical advantage

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

• output work

• the number of times the input force is multiplied

• potential energy

• output force multiplied by the distance over which it acts

• mechanical energy

• stored energy

• lever

Match the following

• the rate at which work is done

• watt

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

• simple machine

• a simple machine consisting of a spiral inclined plane

• pulley

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

• power

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

• screw

Match the following

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

• work–energy theorem

• 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

• an awesome teacher

• work