Download App

Gravitation — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceGravitation2 Marks
Question
Explain why, buildings and dams have wide foundations.
✓

Answer

The foundations of buildings and dams are laid on a large area of ground so that the weight of the building or dam produces less pressure on the ground and they may not sink into the ground.

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

Mention two characteristics of kingdom Protista.
→
Whish of the following diffuses fastest and which the slowest? Solid, Liquid, Gas Give reasons for your answer.
→
Suppose gravity of earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?
→
An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?
→
The difference in the mass of $100$ moles each of sodium atoms and sodium
ions is $5.48002\ g$. Compute the mass of an electron.
→
A sound wave has a frequency 2 kHz and wavelength 40 cm. How long will it take to travel 1.6 km?
→
What are the advantages of composite fish culture?
→
How many moles are there in $34.5g$ of sodium? (Atomic mass of $Na = 23u)$
→
Name the following:
  1. Cavity present in the body of sponges.
  2. Cavity present in the body of cnidarians.
→
A truck starts from rest and rolls down a hill with a constant acceleration. It travels a distance of $400m$ in $20s.$ Find its acceleration. Find the force acting on it if its mass is $7$ tonnes $($Hint: $1$ tonne $= 1000kg.)$
→