Homework post on Physics by @imohmitch||15-7-2022
Greetings all, I want to use this medium and thank @whileponderin for such a nice lesson, physics has always been a nice subject showing us a lot of science facts, so I want to take part in the interesting activity given by the teacher which was about fundamental and derived quantities which is the basics of physics. So I will be answering the four questions we were given as an activity.
Differences between fundamental and derived quantities
What are fundamental quantities: These are those basic quantities which are independent of others, and cannot be derived from other quantities, with these quantities others can be created but you can't use others to create a fundamental quantity which explain the term "independent" of other quantities.
So now unto derived quantity, we can see from the name derived which means gotten from, so we define it this way a derived quantity is a quantity that is gotten from the combination of fundamental quantities. So we can now see the difference between a derived and a fundamental quantity which is, a fundamental quantity are quantities which most(though not all) other quantities depend on while a derived quantity depends on fundamental quantities, so we can see that one depends o the other, while the other doesn't depend on any.
Three examples of fundamental and derived quantities and it's units
Fundamental quantities | units | Abbreviation |
---|---|---|
Length | metre | m |
Mass | kilogram | kg |
Time | second | s |
Derived quantities | derivation | units |
---|---|---|
Force | mass×acceleration | Newton (N) |
Energy/work | force×distance | joule(Nm) |
Electric resistance | ohm |
what's the difference between scalar and vector quantities
Scalar quantities are quantities which have only magnitude (or size) or numerical values but no direction. Let's understand this definition, temperature is an example of a scalar quantity it can be measured using a thermometer i.e to check how cold or hot smth is but it has no direction .
Vector quantities are those which have both magnitude (or size) and direction. Example velocity is a speed in a specified direction like a tricycle travels to the west at 50kmhr^-1, the direction is stated and it is measured. This is how far I understood this topic.
Thank you for contributing to #LearnWithSteem theme. This post has been upvoted by @fabio2614 using @steemcurator09 account. We encourage you to keep publishing quality and original content in the Steemit ecosystem to earn support for your content.
Regards,
Team #Sevengers
Hello friend, I appreciate your detailed homework submission. Thank you for participating in this lesson. I'm sure the teacher will give you very good grade. Best wishes! 🌺
POWER UPs: 57.11 STEEM
Okay
Thank you for reviewing my post
Dear @imohmitch
Thank you for participating in Steemit Physics Class and for completing the Activity task for the week. You got 10/10 Grade Points according to the following Scale;
Comment:
The student has shown that he understood the lesson completely.
We appreciate your efforts and look forward for your next homework tasks.
Best Regards
@whileponderin