Question

Questions (i) to (iv) are based on the following paragraph
Read the paragraph carefully and answer the follow
understanding: -
refully and answer the following questions on the basis of your
Reen, an eighth grader, while reading a book about submarine
grader, while reading a book about submarines got confused how objects
sink and float in fluids. She asked her brother, who is a ninth grader, to explain
ated his explanation by dropping a cork and an iron nail in a container of water.
i) Name the upward force experienced by the cork.wbtw
ii) What does the magnitude of the upward force depend on?
iii) Name and state the principle used in the designing of a submarine.
iv) When does a submarine sink?

Answer 1

(i) buoyant force or upthrust

(ii) surface of the immersed body

(iii) Archimedes' principle

(iv) it will sink when it's total body get immersed in water.It is so because the more body immersed, the more upthrust it will experience.