Is it possible to have 100 percent efficiency

Can Efficiency exceed percent? Generally, energy conversion efficiency is a dimensionless number between 0 and 1. However, other effectiveness measures that can exceed 1. What is the formula for machine efficiency? Efficiency equation Since work is the change in kinetic energy, the efficiency of a machine can be stated as the percentage of the output work divided by the input work minus the work lost from to friction and heat.

What is the formula for power efficiency? What is the most efficient machine? How is mechanical advantage calculated? Next we come to calculating the mechanical advantage of a lever. To do this, you divide the distance from the fulcrum, the point at which the lever pivots, to the applied force by the distance from the fulcrum to the resistance force. Using this picture, this means dividing distance b by distance a. How can you increase the efficiency of an inclined plane?

Friction will be large if objects are slide along the surface of the inclined plane. Efficiency can be increase by using rollers in conjunction with the inclined plane. The wedge is an adaptation of the inclined plane.

What is the equation for work? A force of 10 newtons, that moves an object 3 meters, does 30 n-m of work. Most machines transfer energy from one place or another, or transform one form of energy e. This tendency of systems to lose energy is called entropy. Entropy in a closed system never goes down. Systems always tend toward a state of decreasing order unless more energy is provided into the system to counteract this tendency.

Aug 9, Because of gravity and friction. Explanation: No machine is free from the effects of gravity, and even with wonderful lubrication, friction always exists.

Although complete efficiency in a heat engine is impossible, there are many ways to increase a system's overall efficiency.

This same result can be gained by measuring the waste heat of the engine. There is a maximum attainable efficiency of a heat engine which was derived by physicist Sadi Carnot.

Following laws of thermodynamics the equation for this turns out to be. This describes the efficiency of an idealized engine, which in reality is impossible to achieve. The energy for work comes from a decrease in the total energy of the fluid used in the system. Therefore the greater the temperature change, the greater this decrease in the fluid and thus the greater energy available to do work is.