Which of the following contains potential energy?Group of answer choicesdancinga book on a tablea kid jumping ropeperson riding a bicyclea bouncing ball
Question
Which of the following contains potential energy?
- dancing
- a book on a table
- a kid jumping rope
- person riding a bicycle
- a bouncing ball
Solution
A book on a table contains potential energy. Here's why:
Potential energy is the energy that an object has due to its position in a force field or that a system has due to the configuration of its parts.
In the case of a book on a table, it has gravitational potential energy. This is because the book is positioned at a height above the ground, and due to gravity, it has the potential to fall. The energy that it would release upon falling is what we refer to as potential energy.
The other options listed - dancing, a kid jumping rope, a person riding a bicycle, and a bouncing ball - all involve kinetic energy, which is the energy of motion.
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