Question

Physical quantity of _____ is measured in watt.
1. kinetic energy
2. power
3. momentum
4. impulse

Answer 1

Correct Answer - Option 2 : power

The correct answer is Power.

• Energy:
  • The capacity of doing work is called energy. The unit of energy is Joule.
• Power:
  • ​The rate of consumption of energy is called power.
• P = Δ E / Δt
  • Δ E = Change in energy, Δt = Change in time
• Unit of Power: The unit of power is Watt
• 1 watt = 1 Joule / 1 second

• The unit of power has been named after famous Scottish inventor James Watt to honour him.
• Kinetic Energy: The energy associated with the body in motion is called kinetic energy. It is unit is Joule.
• Momentum: The product of the mass and velocity of a body is called momentum. Its unit is kg m s ^-1.
• Impulse: Impulse is defined as the change in momentum. It is having a unit the same as momentum that is kg m s -1 .