The correct answer is power.

 Key Points

• In physics, power is the rate of doing work.
  • It is the amount of energy consumed per unit of time.
  • The unit of power is joules per second (J/s), which is known as watts (in honor of James Watt, the developer of the steam engine in the eighteenth century).

 Important Points

• Power is the rate at which work is done or the rate at which energy is transferred from one place to another or converted from one form to another.
  • One joule per second is called a watt [W] in honor of Scottish mechanical engineer James Watt.
• In physics, energy is the capacity to do work. It can exist in potential, kinetic, thermal, electrical, chemical, nuclear, or various other forms.
  • Additionally, the process of transfer from one body to another involves heat and work, that is, energy as well.
• Momentum is a term in physics; it refers to the quantity of motion of an object.
  • Momentum can be defined as "mass in motion".
  • All objects have mass; therefore, if an object is in motion, it has momentum, its mass is in motion.