FUNDAMENTAL BASIC OF PHYSICS
Welcome back, my name is Nwoga omasirichukwu Mitchel and this is another episode of science.
I going to talk about how physics was brought up, since the beginning of record history, humanity has expressed an interest in the physical world individual attempted to explain phenomena observe in this world based on discovering the causes of the noted effect.
The basic assumption was that every effect had a findable cause this assumption of causality is the basis of our knowledge of the physical universe.
In the earliest day of human endeavour, we call science, an individual had recourse only to superstition and the invocation of supernatural power. As knowledge and sophistication improved by centuries.
Then every supernatural power started making sense. As the law of nature started becoming know by an individual.
The object of the study of physical science is to described observed phenomena in terms of basic, fundamental, universally operative natural law
The universe and the law of physics seem to have been specially designed for us
FUNDAMENTAL QUANTITY AND DERIVED QUANTITY
What is a fundamental quantity?
fundamental quantities are independent quantities.
What is a derived quantity?
derived quantities are quantities that are dependent on fundamental quantity. example of fundamental quantity and derived quantity.
example fundamental quantity: length, mass, time E.T.C
example of derived quantity: area, volume and velocity E.T.C
So they some equipment that is used to measure quantity like mass or weight, length, time E.T.C
what is mass? A large body of matter with no definite shape. equipment used to weigh items are examples:
- Beam balance: it is the equipment used to measure the weight of an item.
- Digital balance: it is equipment to measure the weight of an item more accurate than beam balance.
- spring balance: it is the weight of the body that always acts vertically downward and it is measured by using a spring balance.
What is length: length is the gap or distance between two points. it S.I unit is metre (m).
If measuring a long-distance area use kilometre (km). when measuring pencil and book then we use centimetre (cm). when measuring an item smaller, we use millimetres (mm).
we can measure objects like a book and the rest, but if we want to measure an irregular shape how are we going to do it.
how to measure a stone:
you need some material like a measuring cylinder, string, water and stone.
so the guy you have to learn the basics before thinking about going to the next level of your learning process because the basic concept is what is applied to the complex concept. that what this article tries to talk about, for example derived quantity depend on fundamental quantity because the fundamental quantity is basic and derived quantity is the complex concept. if you guy if any further explanation held to khan academy. talking heading somewhere you can go check out my youtube and check out my channel (creative world). so guy thank you for reading this article and see you I my next article.
