(c) Kinetic energy of the particles of all maters remains the same at a particular temperature. (b) Kinetic energy of the particles increases with a rise in temperature ![]() ![]() (a) Particles of a matter are randomly moving in all directions. Which of the following statement is not true regarding the characteristic of matter? (d) The density of ice is less than that of water.Īnswer: (d) The density of ice is less than that of water.ġ5. (c) To convert a temperature on the Celsius scale to Kelvin scale, subtract 273 from the given temperature (b) The phenomenon involving the transition of a substance from solid to liquid state is called sublimation. (a) Materials existing as liquids at room temperature have their melting and boiling points lower than that of room temperature. Which of the following statement is correct? ![]() Which of the following causes the temperature of a substance to remain constant while it is undergoing a change in its state?ġ4. Which of the following cannot be considered a form of matter?ġ3. ![]() Which of the following phenomena always results in the cooling effect?ĬBSE Class 9 Science Important Questions & Answers for Annual Exam 2020ġ2.
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