Relier Pairs Work and EnergyVersion en ligne vocabulary exercise for work and energy par Monica Watkins 1 Power 2 Simple machine 3 Potential energy 4 Mechanical energy 5 Work 6 Compound machine 7 Gravitational potential energy 8 Mechanical advantage 9 Law of conservation of energy 10 Kinetic energy 11 Efficiency 12 Energy the rate at which energy is converted a machine that does work with only one movement of the machine is the ratio of output work to input work force applied through a distance the ratio of the output force to input force energy due to motion a combination of two or more simple machines energy that is stored due to the interactions between objects the sum of the kinetic energy and potential energy of the objects in a system the ability to cause change states that energy cannot be created or destroyed energy that is due to the gravitational forces between objects