This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which statement about solids, liquids and gases is correct? A) In a gas, particles move slowly downwards due to the force of gravity. B) In a liquid, particles move slowly in some directions only. C) In a solid, particles vibrate about fixed positions. D) Liquids and gases can be easily compressed. Show Answer Correct Answer: C) In a solid, particles vibrate about fixed positions. 2. What are the units of specific heat capacity? A) J / kg. B) J kg / C. C) J / kg C. D) J / C. Show Answer Correct Answer: C) J / kg C. 3. Using a microscope, Peter observes that some pollen grains suspended in water move in an irregular manner. This is due to the A) Pollen grains colliding with one another. B) Pollen grains repelling one another. C) Bombardment of pollen grains by water molecules. D) Bombardment of water molecules by pollen grains. Show Answer Correct Answer: C) Bombardment of pollen grains by water molecules. 4. Even though they have more energy than solid particles, liquid particles are still stuck in a crystalline structure. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. What effect will adding heat energy have on particles in a substance? A) The particles will speed up and spread out. B) The particles will slow down and move closer together. C) The particles will slow down and spread out. D) The particles will speed up and move closer together. Show Answer Correct Answer: A) The particles will speed up and spread out. 6. The main idea of the Kinetic Molecular Theory is that all molecules have A) Mass. B) Motion/movement. C) Volume. D) Moles. Show Answer Correct Answer: B) Motion/movement. 7. The energy of motion/movement is ..... A) Potential energy. B) Kinetic energy. C) Mechanical energy. D) None of the above. Show Answer Correct Answer: B) Kinetic energy. 8. What has to happen in order for a phase change to occur? A) Take away heat. B) Add heat. C) Either add or take away heat. D) None of the above. Show Answer Correct Answer: C) Either add or take away heat. 9. Is the statement true or false?Freezing and melting takes place at the same temperature. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Which gas law is represented by the equation $PV = nRT$ A) Boyle's Law. B) Charles's Law. C) Ideal Gas Law. D) Avogadro's Law. Show Answer Correct Answer: C) Ideal Gas Law. 11. In the kinetic theory, which factor is responsible for the pressure exerted by a gas? A) The weight of the gas particles. B) The collisions of gas particles with the walls of the container. C) The volume of the gas. D) The color of the gas. Show Answer Correct Answer: B) The collisions of gas particles with the walls of the container. 12. Absolute Zero = ..... K or ..... C. A) 0, 273.15. B) 0, -273.15. C) 32, 237.15. D) -32, -273.15. Show Answer Correct Answer: B) 0, -273.15. 13. What phase is this describing?Has no definite shape, Has no definite volume, Particles move very quickly, Particles have weak forces between them A) Solid. B) Liquid. C) Gas. D) None!. Show Answer Correct Answer: C) Gas. 14. Between ice, water and steam, which is most easily compressed? A) Ice. B) Water. C) Steam. D) None of the above. Show Answer Correct Answer: C) Steam. 15. True or False?The particles in a liquid are travelling at very high velocities, allowing them to break the attractions between each other. This means particles can move through the liquid and hence a liquid's shape can change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Are particles of matter always in motion? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 17. True or False?In a solid, particles are usually shown packed closely together in very orderly planes. There are no spaced between the particles. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 18. What is Brownian motion? A) The oscillation of particles in a solid due to temperature changes. B) The uniform motion of particles in a gas without any external forces. C) The predictable path of a particle in a vacuum. D) Brownian motion is the random movement of particles in a fluid due to molecular collisions. Show Answer Correct Answer: D) Brownian motion is the random movement of particles in a fluid due to molecular collisions. 19. What happens when you heat a substance? A) Every one of its particles increases speed by the exactly same amount. B) Some of its particles slow down so much that they go backwards. C) The average kinetic energy of its particles decreases. D) The average kinetic energy of its particles increases. Show Answer Correct Answer: D) The average kinetic energy of its particles increases. 20. Root mean squared (r.m.s) speed of a gas molecules is directly proportional to ..... and inversely proportional to ..... A) Molar mass ; temperature. B) Temperature ; molar mass. C) Temperature ; pressure. D) Pressure ; temperature. Show Answer Correct Answer: B) Temperature ; molar mass. 21. When thermal energy is added to a substance, the substance's particles move: A) More rapidly at an increased distance from each other. B) More slowly with a greater distance between each other. C) More rapidly with less distance between each other. D) More slowly with a reduced distance between each other. Show Answer Correct Answer: A) More rapidly at an increased distance from each other. 22. When air in a hot air balloon is heated the air inside the baloon ..... A) Expands. B) Contracts. C) Evaporates. D) Condenses. Show Answer Correct Answer: A) Expands. 23. Particles are loosely packed. Can change position-has a definite volume, but takes the shape of its container. A) Bose-Einstein Condensate. B) Solid. C) Liquid. D) Gas. E) Plasma. Show Answer Correct Answer: C) Liquid. 24. A gas is taken in a sealed container at 300 K. it is heated at constant volume to a temperature 600 K. the mean K.E. of its molecules is A) Halved. B) Doubled. C) Tripled. D) Quadrupled. Show Answer Correct Answer: B) Doubled. 25. In terms of spacing, what is necessary to change from a solid to a liquid? A) Increase in spacing. B) Decrease in spacing. C) No change. D) Add heat. Show Answer Correct Answer: A) Increase in spacing. ← PreviousNext →Related QuizzesClass 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 1Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 2Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 3Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 4Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 5Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 6Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 7Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 9Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 10Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books