1) What is the name of energy stored by a moving object? a) Elastic potential energy b) Kinetic energy c) Gravitational potential energy 2) Where might elastic potential energy be stored? a) In a stretched catapult b) In a catapult stored in a cupboard c) In a candle 3) What is the main energy transfer for an apple falling from a tree? a) kinetic energy --> elastic potential energy b) chemical energy --> gravitational potential energy c) Gravitational potential energy --> kinetic energy 4) What is the main energy transfer for long distance runner? a) kinetic energy --> chemical energy b) chemical energy --> gravitational potential energy c) chemical energy --> kinetic energy 5) Which of these cannot happen to energy? a) cannot be stored b) cannot be dissipated c) cannot be created 6) If 4000J of energy is transferred and 2500J is usefully stored, how much is wasted? a) 6500J b) 1500J c) 3250J 7) What happens to 'dissipated' energy? a) It is transferred to useful stores b) It disappears from the system c) It spreads out into the surroundings 8) What is the GPE stored in a 60kg child sitting at the top of a 2m slide (g=10 N/kg) a) 1200J b) 600J c) 120J

Changes in Energy Stores

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