Download App

Gravitation — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceGravitation2 Marks
Question
Why do we feel lighter when we swim?
✓

Answer

A person in water feels an upward force called buoyant force, exerted by the water acting in upward direction. This reduces the weight of the body and hence, we feel lighter in a swimming pool.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Que-Ans (Each of 2 Mark )" from Gravitation→Gravitation — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

List two bacteria which bring about nitrification.
→
Explain the formation of $(i)$ sodium ion, and $(ii)$ chloride ion, form their respective atoms giving the number of protons and number of electrons in each one of them. What is the reason for positive charge on a sodium ion and a negative charge on a chloride ion?
→
What is the intensity of sound wave? Give its relation with amplitude.
→
Write down two important characteristics of algal cell wall?
→
Why does a gas exert pressure?
→
What are polyatomic ions? Give examples.
→
Name four types of bacteria involved in nitrogen cycle.
→
What are the quantities on which the amount on which the amount of work done depends? How are they related to work?
→
The atomic number and the mass number of certain elements are given below in the table.
Element A B C D E F
Atomic number $1$ $3$ $8$ $18$ $20$ $1$
Mass number $2$ $7$ $16$ $40$ $40$ $4$
  1. Select a pair of isobar and isotope from the above table.
  2. What would be the valency of elements $B$ and $E$?
→
How does perspiration or sweating help keep our body cool on a hot day?
→