The rate of doing work is known as ______.
power
The correct answer is power.
Power is defined as the rate at which work is done or energy is transferred. It's a measure of how quickly work is accomplished. The formula for power is:
\(Power = \frac{Work}{Time}\)
Where:
- Power is typically measured in Watts (W).
- Work is measured in Joules (J).
- Time is measured in seconds (s).
Therefore, a higher power rating indicates that a system can perform a given amount of work in a shorter time.
Force, kinetic energy, and potential energy are related concepts in physics, but they do not directly define the rate of doing work. Force is a push or pull, kinetic energy is the energy of motion, and potential energy is stored energy.
Similar Questions
- The work done by a 10 Newton force acting on a body, which results in the displacement of 2 m in the direction of the force, is __________.
- An object of mass 1 kg is moving with a velocity 10 m/s. Find the kinetic energy of the object.
- The efficiency of a machine can never be ______.
- In practice, the work output of a machine is ______ the work input due to the effect of friction.
- How much energy is used by an 80% efficient, 2kW motor running at a peak load for 5 hours?
- A pump is required to lift 600 kg of water per minute from a well 25m deep and to eject it with a speed of 50 m/s. If \(g = 10 \text{ m/s}^2\), the power required to perform the above task is
- A lorry and a car moving with the same kinetic energy are brought to rest by applying the same retarding force. Then:
- In practice, the work output of a machine is always less than the work input due to the effect of ______.
- Ideal machines are those imaginary machines which are ______.
- The efficiency of a simple machine is defined as ______.
Important Questions from Work Power and Energy
Which of the following is an example of potential energy?
_______ is one of the chemical used to produce Ocean Thermal Energy.
A body of mass 2kg is thrown up vertically with a kinetic energy of 500J. If the acceleration due to gravity is 10 m/s2, the height at which the kinetic energy of the body becomes half of the original values is _____
Arjun has a mass of 50 kg, he eats banana of 1000 calories. If this energy is used up to lift him from the ground, the height to which he can climb is _______. Take g = 10 m/s2 and 1 calories = 4.2 Joule.
When a body of mass 'm' attains a velocity 'v' from rest in time 't', then kinetic energy of translation is:
