Physics

What the attraction between apple and earth is known as? The attraction between apple and earth is known as gravity.

What is the unit of displacement? The SI unit of displacement is meter (m).

Water kept in an earthen pitcher remains cold on summer days – explain? Water kept in an earthen pitcher remains cold on summer days. An uncountable number of pores are there on the body of an earthen pitcher. Through these pores, water seeps out and evaporates. The needed amount of latent heat is provided by … Read more

Conditions of floatation and immersion of a body? The conditions of the floating or sinking of an object are – a) If W1>W2, or if the weight of the object is more than the liquid abstracted by the object then the object will sink in the liquid. b) If W1>W2, or if the weight of … Read more

What is the cause of the floating and sinking of a solid body? If an object is put into still water and the amount of replaced water by the object is less than the object’s mass it will drown, if the replaced water has the same mass as the object it will float while its … Read more

What is meant by the work done 250 J? 250 J work means- 1) Work done due to application of 1 N force to displace it by 250 m is 250 J. 2) Work done due to application of 250 N force to displace it by 1 m is 250 J.

How can you understand those slide calipers has an instrumental error? Kinetic theory of molecules is based upon these postulates: Any substance is made of numerous small particles. These are known as molecules. Molecules are so small that they are considered point-like. The particles are always moving. In the case of gases, the molecules remain … Read more

What is elasticity? If an external force is applied to an object and it changes or tries to change the shape and size of the object, the property of the object that obstructs this tendency of deformation, and if the force is taken away the object regains its original size and shape is elasticity. Those … Read more