MATTER IN OUR SURROUNDINGS

TRANSiTiON {Striving singularity, Exploring Excellence} MATTER IN OUR SURROUNDINGS NCERT BASED

Time: 1Hour                                                                                                    Max. Marks: 40

1.      A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

2.      What are the characteristics of the particles of matter?

3.      Tabulate the differences in the characteristics of states of matter.

4.      Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why.

5.      What is latent heat? Define latent heat of vaporization and latent heat of fusion.

6.      What do you mean by boiling and melting point of a substance? Define it.

7.      What is the major difference between Celsius and Kelvin scale? Define it by plotting a suitable scale.

8.      For any substance, why the temperature does remains constant during the change of state.

9.      Suggest a method to liquefy atmospheric gases.

10.  Why is ice at 273 K more effective in cooling than water at the same temperature?