Rub your hands together vigorously. What happens? Discuss the energy transfers and transformations that take place.
Step 1 First, we should list out what all energies will be produced or transformed while rubbing the hands. They are, Kinetic Energy, K (Due to the relative motion of the hands) Gravitational Potential energy, U [It can g represented as “Potential energy” (U). But, it is purely due to gravitational force exerted So, it should be represented as Gravitational Potential Energy] Chemical energy, E (The energy which is spend by the body to move the hands) Ch Thermal energy, E (We feeTht as hot while rubbing the hands).