Physics - Mechanics - Work and Energy - Potential energy (gravitational and elastic) - Where's the Hidden Energy?
Show 8 scenarios and ask 'Does this object have stored (potential) energy? Yes or No.' (1) A ball held above the ground (Yes - gravitational PE). (2) A stretched rubber band (Yes - elastic PE). (3) A ball rolling on flat ground (No - that's KE). (4) A book on a high shelf (Yes - gravitational PE). (