P3 - The Energy of Games and Theme Rides 0.0 / 5 ? ScienceThe Energy of Games and Theme RidesGCSEOCR Created by: kaliSereneCreated on: 21-05-16 19:32 What does any object held above ground? Gravitational potential energy 1 of 11 What is the formula of Gravitational Potential Energy? GPE = mass x gravitational field strength x vertical height moved 2 of 11 What is GPE measured in? joules (J) 3 of 11 What happens when skydivers reach terminal speed? Their kinetic energy has a maximum value and remains constant. The GPE lost as they fall is used to do work against friction (air resistance) 4 of 11 What can terminal speed being reached be shown as? change in GPE = work done against friction 5 of 11 What happens when a rollercoaster is released? Converts GPE to kinetic energy as it falls 6 of 11 What can this be shown by? loss of GPE = gain in KE 7 of 11 Why is each peak lower than the one before? Some energy is transferred to heat and sound due to friction and air resistance 8 of 11 What can this be shown by? GPE at top= KE at bottom + energy transferred (to heat and sound) due to friction 9 of 11 What happens to KE if speed doubles? It quadruples 10 of 11 What happens to KE if mass doubles? It doubles 11 of 11
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