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 ...

It's near the start of a new semester of physics. Many faculty are working on their plans for introductory physics courses. How many tests should there be? What about homework? Do I want to cover ...

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 ...