Download App

Gravitation — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceGravitation2 Marks
Question
Why do buildings 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→Rajasthan Board STD 9 question papers→Rajasthan Board question paper generator→

Similar questions

The electronic configurations of some elements are given below. Name the elements. 
  1. 2, 8, 5
  2. 2, 8, 8, 2
  3. 2, 8, 1
→
What will happen if a saturated solution is: (i) heated, and (ii) cooled?
→
What do you mean by the term ‘free fall’?
→
What is common in poultry, fisheries, and bee-keeping with respect to the increase in production of animals?
→
State the various effects of force.
→
Draw a velocity-time graph to show the following motion:
A car accelerates uniformly from rest for 5s ; then it travels at a steady’ velocity for 5s.
→
By which method of separation the volatile component from its non-volatile solute can be separated?
→
Akhtar, Kiran and Rahul were riding in a motorcar that was moving with a high velocity on an expressway when an insect hit the windshield and got stuck on the windscreen. Akhtar and Kiran started pondering over the situation. Kiran suggested that the insect suffered a greater change in momentum as compared to the change in momentum of the motorcar $($because the change in the velocity of the insect was much more than that of the motorcar$).$ Akhtar said that since the motorcar was moving with a larger velocity, it exerted a larger force on the insect. And as a result the insect died. Rahul while putting an entirely new explanation said that both the motorcar and the insect experienced the same force and a change in their momentum. Comment on these suggestions.
→
Given examples of different rabi and kharif crops.
→
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?
→