High School Physics

Key Equations of Work, Energy, Power & Simple Machines

Last updated on October 2nd, 2023 at 04:16 pm

Here we enlist important key equations or formulas from the Work, Energy, Power & Simple Machines chapter.

Equations related to Work, Power and the Work-Energy Theorem

Let’s examine how doing work on an object changes the object’s energy. We will use cases related to a piece of rock to apply different equations from work & energy.

Equation related to Mechanical Energy and Conservation of Energy

Mechanical energy can be either potential or kinetic. This equation shows how energy is transformed from one of these forms to the other. We will also see that, in a closed system, the sum of these forms of energy remains constant.

Equations related to Simple Machines

Ideal Mechanical advantage (IMA) of different simple machines, input work, output work, and efficiency – Get equations of all these here.

Note: Numerical problems: Here is the link to one useful post in this portal where you will find a good collection of solved numerical problems on energy conversion or transformation.