7 .
ace
Define fundamental and derived quantities with two exam
What is time? How is one second time defined in the Si
Answer the following questions.
a. Define measurement.
b. What is the importance of measurement?
C.
d.
What is a fundamental unit? Write its two examples.
f.
g
h.
The unit of area is a derived unit. Why?
How can you say that m3is called a derived unit?
What is Sl system? Write the difference between SI system ans
What is mass? Write its Sl unit.
What do you mean by a physical quantity?
Write any four differences between mass and weight.
i.
j
k.