Machines, Pressure, and Fluids
A hydraulic lift, a floating boat, and a ramp look unrelated. Each one trades force, distance, or pressure in a way that follows energy conservation and the behavior of fluids. This lesson supports Chapter 10 of High School Physics. Simple machines trade force for distance Ideal mechanical advantage compares output force with input force. A […]
Matter and Materials
Materials respond differently to the same push, pull, or temperature change. Physics connects those visible responses to density, structure, stress, strain, and elasticity. This lesson supports Chapter 9 of High School Physics. Density compares mass with volume Density is \[\rho=\frac{m}{V}.\] It is an intrinsic property when temperature and pressure are specified. Cutting a uniform metal […]
