Which is an example of an object increasing its kinetic energy Question 3 options:

an airplane after landing on a level runway.

a rocket before launch.

a train stopped at the station.

a mouse running faster after spotting a cat.

The answer to this question is the A choice. A rocket before launch.

Explanation:

In the definition of kinetic energy, it says: In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.