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KINETIC AND POTENTIAL ENERGY

KINETIC AND POTENTIAL ENERGY. Define and give an example of kinetic energy. Kinetic energy is energy of motion. ex: flying rocket, student walking, book falling. Define and give an example of potential energy. Potential energy is energy that is stored as a result of position or shape.

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KINETIC AND POTENTIAL ENERGY

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  1. KINETIC AND POTENTIAL ENERGY

  2. Define and give an example of kinetic energy. Kinetic energy is energy of motion. ex: flying rocket, student walking, book falling. Define and give an example of potential energy. Potential energy is energy that is stored as a result of position or shape. ex: stretched guitar string

  3. What is gravitational potential energy? Gravitational potential energy is potential energy that depends upon an object’s height above ground.

  4. What is mechanical energy? Energy you measure when you observe motion and position of an object. List two types of mechanical energy. a. Kinetic Energy b. Potential Energy

  5. List six other kinds of energy and give an example of each. a. Thermal (Heat) – running engine of a car. b. Chemical – burning gasoline, burning candle. c. Electrical – appliances. d. Electromagnetic – x-rays. e. Nuclear – nuclear power plants, splitting an atom. f. Light (Solar) – plants use for photosynthesis. g. Geothermal - geysers

  6. State the law of conservation of energy. Energy cannot be created or destroyed – it can be converted from one form to another.

  7. Describe the changes in energy that occur as a rock falls off a cliff. Use the terms potential and kinetic energy in your description. A drawing might be useful. At the top of a hill the rock has potential energy. As it falls, its potential energy changes to kinetic energy. At the bottom of the hill it’s back to potential energy.

  8. Which has more potential energy, an orange at the top of a tree or one in the lower branches? The orange at the top has more potential energy because it is higher off the ground. 10. You are coasting uphill on your bicycle. What happens to the kinetic energy that you lose as your speed decreases near the top of the hill? Kinetic energy changes to potential energy.

  9. A book sliding across a desk loses all its kinetic energy, and comes to rest. The book feels slightly warm. Was energy conserved? Explain your answer. Energy was conserved where kinetic energy changed to potential energy and thermal energy.

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