Multiple choice

As the cars of a rollercoaster race down a hill, energy transformations take place. Which of the following is true?

  1. some energy is destroyed as the car slows down

  2. potential energy is transformed to kinetic energy and other forms of energy

  3. the kinetic energy of the cars is equal to the potential energy of the cars

  4. kinetic energy is stored while the car moves down the hill
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

As a rollercoaster descends, gravitational potential energy is converted into kinetic energy. Some energy is also lost to the surroundings as heat and sound due to friction and air resistance.

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