First, let’s look at gravity. On the surface of the Earth, the usual model for gravitational force is the object’s mass times the gravitational field (represented by g) where g is about 9.8 Newtons ...

The questions in this quiz are suitable for GCSE physics students studying density, volume and investigating density. If you struggled with the quiz, don't panic - we've got you! You can revise ...

Learn the fundamentals of energy in an inductor and magnetic field density in this beginner-friendly physics tutorial! In this video, we break down key concepts, formulas, and examples to help you ...

This video includes an explanation of density using practical exams. Density is mass per unit volume.

Recent progress in kilojoule-scale high-intensity lasers has opened up new areas of research in radiography, laboratory astrophysics, high-energy-density physics, and fast-ignition (FI) laser fusion.

Understand the energy density of electric and magnetic fields by exploring how energy is stored and distributed in electromagnetic fields. This video explains the underlying physics, key equations, ...