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