Which of the following is an example of $kinetic energy$?

• A. A rock resting at the top of a hill
• B. A stretched bow ready to shoot an arrow
• C. A battery storing electrical energy
• D. A moving car traveling down the highway

Answer: (D)

Verified step by step guidance

1. Understand the definition of kinetic energy: it is the energy possessed by an object due to its motion.
2. Identify the options given and analyze whether the object is in motion or not.
3. A rock resting at the top of a hill has potential energy because it is stationary but positioned to fall.
4. A stretched bow and a battery store potential energy in the form of elastic and chemical energy, respectively.
5. A moving car traveling down the highway has kinetic energy because it is in motion, which matches the definition of kinetic energy.