Which of these is exhibiting kinetic energy?
A: A space station orbiting Earth
B: A rock on a mountain ledge
C: An archer with a flexed bow
D: A person sitting on a couch while watching TV
E: The high-energy phosphate bonds of a molecule of ATP
Option A is the correct answer.
“Kinetic energy is defined as the energy possessed by a body by virtue of its motion“.
Why option B is incorrect:
As we know that kinetic energy is the energy of motion so rock on a mountain ledge does not possess kinetic energy because the rock cannot move; therefore, kinetic energy cannot exhibit.
Why option C is incorrect:
Similarly, an archer with a flexed bow does not exhibit kinetic energy as it has a still position while kinetic energy is produced due to the motion of the body.
Why option D is incorrect:
A person sitting on a couch does not exhibit kinetic energy because his body is in state of rest while kinetic energy requires a body in motion; therefore, option D is also incorrect.
Why option E is incorrect:
Similarly, the high-energy phosphate bonds of a molecule of ATP does not exhibit kinetic energy.
A space station orbiting Earth exhibits kinetic energy. As we know that kinetic energy produces due to the motion of a body; therefore, option A is correct while all of the other given options are in a state of rest. A space station that revolves around Earth, so it’s in state of motion; therefore, it produces kinetic energy.
Energy can cause change. The power that is associated with motion is called kinetic energy. On the other hand, an energy that is not kinetic is known as potential energy which matters have due to its structure or location.
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