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.

Force work explained in a clear, relaxed way – perfect for reviewing! #EasyPhysics #ForceWork #PhysicsReview Windows 10 support ends today, but here's how to get an extra year for free YouTubers Dan ...

A clever mathematical tool known as virtual particles unlocks the strange and mysterious inner workings of subatomic ...

Pressure is a measure of how concentrated a force is. The amount of pressure exerted on an object depends on the force applied and the surface area it is spread over. Force diagrams and resultant ...

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 ...

Sometimes you think you have a complete understanding of something and then BOOM—a simple problem throws everything out the window. Let's consider a very basic physics problem involving pushing a ...