One of the things I really like about the Matter and Interactions curriculum that we're using for introductory physics (and that I'll miss when we stop using it next term) is that it has a really ...

A force is a push or a pull that acts on an object due to the interaction with another object. Force is measured in newtons (N). Forces are divided into contact forces and non-contact forces. A force ...

Physics is the study of the basic laws that govern matter. Physics covers the science of the very large, and includes the study of bodies in motion, forces, heat and energy, waves, electricity, ...