Question Text
Question 2 :
Which property of an object cannot be changed by applying forces?
Question 3 :
According to Hooke's law of elasticity, if stress is increased, then the ratio of stress to strain :
Question 6 :
<span>The property of a material due to which shape is changed permanently is known as:</span><br/>
Question 7 :
<span>Change in the shape of a body caused by the application of a force (stress) is called as :</span><br/>
Question 8 :
Fill in the blank.<br/>In a technical sense a substance with a ________ elasticity is one that requires a ______  force to produce a distortion-for example, a steel sphere. <br/><br/>
Question 10 :
The property to restore the natural shape or to oppose the deformation is called :
Question 15 :
A spring is made of steel and not of copper because
Question 17 :
A wire is stretched to double its length. The strain is :
Question 18 :
Substances that break just after elastic limit is reached are known as
Question 20 :
According to Hooke's Law, the elongation produced in a body is :