Physics is the science of understanding and predicting the behavior of matter and energy in the universe. One of the fundamental aspects of physics is the study of power, which is defined as the rate ...

Understanding the relationship between force, mass, and acceleration is a fundamental concept in physics. This relationship, known as Newton’s second law of motion, states that the acceleration of an ...

Work close workEnergy transferred by a force. Work done = force × distance moved in the direction of the force. is done when energy is transferred from one store to another. Work is also done when a ...

When David Politzer, Caltech's Richard Chace Tolman Professor of Theoretical Physics, was a fourth-year graduate student at Harvard in 1973, he made an astounding discovery that would forever reshape ...

The diagrams show two examples of balanced objects where there is no rotation. A ball at the bottom of a trough A balanced see-saw For a balanced object, the size of a force, or the perpendicular ...

When it comes to measuring the "hardness" of a material, most tests are distinctly low-tech and basically involve pressing a diamond tip into the surface and measuring the size of the dent produced.

The strongest force in the universe is called, aptly, the strong force. We never get to witness its fearsome power because it works only across subatomic distances, where it binds quarks together ...