Define physics what is physics about einstein?
It depends on what kind of thing you're trying to produceTell us?
Physics is the study of such things as Heat Light Sound Electricity Magnetism Atomic Structure Mechanics In each topic Physics is about discovering the laws that govern behaviourFor example how a vertical wire stretches when when various weights are placed on one end (Hooke's Law)This knowledge has applications in such things as constructing bridges and manufacturing cranesPhysics also seeks to determine how one quantity varies with anotherFor example how the electrical resistance of a conducting wire changes with temperatureIt also investigates how one energy form (such as kinetic energy) can be converted into another (such as electricity - I have just decribed a wind generator).
