Explanation:

- Force: This is the correct answer. A force is an external influence that can change the state of rest or uniform motion of a body. It can cause acceleration, deceleration, or deformation.

- Heat: This refers to thermal energy transferring between systems or objects. It usually results in a change in temperature, not necessarily a change in motion.

- Power: This is the rate at which work is done or energy is transferred over time. It does not directly influence the state of rest or motion.

- Energy: This is the capability to do work. While related to force, energy itself doesn't directly change motion without being applied as work.