Physics · P4
Forces
A force is never something one object has. It takes two, it is measured in newtons, and what an object actually responds to is whatever is left over when you have added them all up.
- 1What a force isModel
- 2Drawing and adding forcesModel
- 3Balanced and unbalancedContrast
- 4What forces do to motionModel
- 5FrictionProcess
- 6Air and water resistanceSystem
- 7Moments: the turning effectQuantitative
- 8Springs and Hooke's lawInvestigation
- 9Non-contact forcesClassify