and for their class project they set out to find an efficient way to use the kinetic energy they created while running. “Why can’t we use that energy to recharge our phones?” they reasoned. Tapping ...

This kinetic energy can be transferred into electrical ... Look through the sideshow to find out how the different devices work.

The faster an object is travelling, the more energy there is in the kinetic energy store of the object. How fast the object is moving is its speed. Speed is measured in m/s. Velocity is speed in a ...