Transfer Between KE & GPE

• What are the two forms of energy discussed in the lesson?

  Kinetic energy and gravitational potential energy
• What happens to kinetic energy as an object rises?

  Kinetic energy is converted to gravitational potential energy
• What occurs to gravitational potential energy when an object falls?

  Gravitational potential energy is converted to kinetic energy
• What is the relationship between KE lost and GPE gained?

  KE lost equals GPE gained
• What is the relationship between KE gained and GPE lost?

  KE gained equals GPE lost
• What are the key concepts of energy transfer between KE and GPE?

  • As an object rises, KE converts to GPE
  • As an object falls, GPE converts to KE
  • KE lost = GPE gained
  • KE gained = GPE lost
• What type of energy is highest at point A of the roller coaster?

  Gravitational potential energy
• What is the kinetic energy of the car at point A?

  Zero
• What happens to gravitational potential energy as the car descends to point B?

  It decreases and transfers to kinetic energy
• How is the gravitational potential energy lost related to kinetic energy gained?

  GPE lost equals KE gained
• What are the factors causing energy loss in a roller coaster ride?

  • Friction between the car and the track
  • Air resistance acting on the car
• Are energy losses due to friction and air resistance included in calculations?

  No, unless stated otherwise