Gravitation NCERT in-text Question class 9
Hello, readers 😊! This webpage contains class 9th science chapter 10 ‘Gravitation’ NCERT in-text questions and solutions. Gravitation NCERT in-text Question class 9.
NCERT in-text Question page 141
Question 1:
Why is it difficult to hold a school bag having a strap made of a thin and strong string?
Ans: Pressure= Force/Area
The smaller the area, the more pressure will be exerted. Since school bags have thin straps and the school bag weight is more, more pressure is felt and it becomes difficult to hold the school bag.
Question 2:
What do you mean by buoyancy?
Ans: The tendency of a body due to which an upward force acts on it when it emerged inside a liquid is called buoyancy.