The equation F = ma is one of the most important in physics. Yet we have so far not explained how to get a quantitative operational definition of either mass or force. Somehow, from this one ...

Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, Einstein!

The greater the unbalanced force the greater the acceleration. This law is usually written as an equation: \(Unbalanced\,force = mass \times acceleration\) \(F = m \times a\) Where unbalanced ...

Newton's Second Law states that force equals mass times acceleration. This can be investigated using a set-up like this one. You can use this set-up to investigate how changing two separate ...