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