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