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4. Physics and Natural Laws

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7. Potential Energy

Potential energy is the energy that an object possesses because of its position or form. For example, a book on a table has the "potential" energy to fall to the floor, whereas a book that is already on the floor has the potential energy to "fall" towards the center of the earth.

When you are parked on a hill, gravity causes your car to have potential energy. This energy is converted to kinetic energy (motion) if it breaks loose and rolls down the hill. There is also potential energy built up in the components of your car's suspension system that may cause you to swerve when you come out of a turn.

Lesson Summary


  

Lesson 4 Quiz


You will now answer 5 questions to test what you learned during this lesson. You must answer all questions correctly to receive completion credit for this lesson. You may answer the questions as many times as necessary to get them right.

You should review the lesson material if you don't do well on the quiz.

  1. The primary factor in decreasing the Kinetic Energy of an object is to:


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  2. According to the formula for stopping distance, how many feet will it take you to stop, from 60 mph?


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  3. The best way to maximize the traction of your tires is to:


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  4. Gravity:


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  5. Centrifugal force:


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