Study

Energy II

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  • State the Law of Conservation of Energy
    Energy cannot be created or destroyed only transferred or transformed
  • At the top of the roller coaster the carts have
    Gravitational Potential energy
  • 1/2 x mass x velocity x velocity is the formula to calculate what type of energy
    Kinetic Energy
  • Name five types of energy
    Kinetic, light, sound, heat, electrical, gravitational, elastic, chemical or nuclear
  • Calculate the potential energy if the mass of the object is 10kg, gravity is 10N and the height is 5m
    500J
  • The energy needed to ride a skateboard originally come from
    The sun as radiant energy
  • What type of energy does the object have
    Elastic potential energy
  • The member of BTS that says they have the least amount of energy
    Suga
  • When heat energy is changed into heat energy there is an energy
    Transfer
  • What is the energy transformation when steam turns a turbine and the turbine generates electricity
    Kinetic energy to electrical energy
  • mass x gravity x height is the formula to calculate what type of energy
    Gravitational Potential Energy
  • Calculate the efficiency from the diagram - useful energy 10J and input energy 100J
    10%
  • Calculate the amount of useful energy if the input energy is 10J
    6J
  • When chemical energy is changed into light energy there is an energy
    Transformation
  • At the top of the roller coater the carts have 50J, how much kinetic energy will they have when they reach the bottom
    50J
  • Where is Katnes getting the energy to pull the bow
    Light energy from the sun was turned into chemical energy in plants by photosynthesis, which was eaten and transfer into chemical energy in her body
  • What object can transform light energy into electrical energy
    Solar panel
  • The type of energy at the bottom of the roller coaster
    Kinetic energy
  • Describe the energy transformation
    Gravitational potential energy to kinetic energy with the waste energy of heat from friction
  • A ball with 50J of potential energy is dropped on two different surfaces, will the amount of energy the ball has change
    No, the total energy will be the same as the ball is dropped from the same height
  • What type of energy has J-Hope got
    Gravitational potential energy
  • If a light bulb has the input energy of 100J and it produces 25J of heat, how much light energy is produced
    75J