Water evaporating, crumpling or cutting paper, and inflating or deflating anything are all physical changes. Also water turning into ice is one.
5 branches of physics
Mr. Bourgeois was my high school physics teacher.In physics class, we did electricity experiments.The boys in my high school physics class blew the fuses in the lab.
Science is the study of everything around us and Technology is where "science" is applied into. An example of this is Physics. Physics is a study of matter in motion and an example of technology where physics is applied are Aeroplanes, Cars, Trains, Rocket ships, etc.
It explains things in our world. The leading nations in the world (China, for example) have an understanding of physics in their technologies.
It is an example of both, as biology and physics overlap because the boundary of science between them is not always so clear.
My next class is physics.We studied electricity in our physics class. Physics is a hard subject.
Gravity is an example of a force of nature being studied by physics. Physics is a human endevour to help increase our understanding of the natural world. To describe nature we have theories; for example we have the Theory of Gravity to explain gravity.
"Physics" is typically considered a singular noun when referring to the scientific discipline as a whole. It can be treated as both singular and plural depending on how it is used in a sentence, for example: "Physics is a fascinating subject" (singular) vs. "The physics of the situation are complex" (plural).
There are "first laws" in several physics disciplines, for example the "First Law of Thermodynamics". There is none that is generally considered to be important enough to be considered the first law of physics in general.
Physical sciences are an umbrella field of disciplines. The physical sciences include chemistry and physics for example. Therefore, physics is an example of one of the physical sciences.
The transferrence of momentum from one stone to the other is a good example.
Physical chemistrical apparutus