This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. On this temperature scale, there can NEVER be negative numbers A) Celsius. B) Fahrenheit. C) Kelvin. D) None of the above. Show Answer Correct Answer: C) Kelvin. 2. If a solid substances changes straight into a gas without going through the liquid phase, this is known as ..... A) Impossible. B) Sublimation. C) Vaporization. D) Condensation. Show Answer Correct Answer: B) Sublimation. 3. What is the main assumption of the kinetic molecular theory regarding the size of gas particles? A) Gas particles are considered to have negligible volume. B) Gas particles have a significant volume. C) Gas particles are larger than the space between them. D) Gas particles are the same size as the space between them. Show Answer Correct Answer: A) Gas particles are considered to have negligible volume. 4. Which of the following best explains why gases are compressible according to the Kinetic Theory? A) Gas particles are very small and occupy negligible space. B) Gas particles are in constant motion and can be pushed closer together. C) Gas particles have strong intermolecular forces. D) Gas particles are heavy and can be compressed easily. Show Answer Correct Answer: B) Gas particles are in constant motion and can be pushed closer together. 5. A fixed mass of gas at a constant temperature has a volume of 50 litres at a temperature of 27 $^{o}$C. If the temperature falls to 0$^{o}$C, what is the new volume? (I'll give you two minutes for this one ..... OK, I'll give you three) A) 0 litres. B) 35.5 litres. C) 45.5 litres. D) 55.5 litres. Show Answer Correct Answer: C) 45.5 litres. 6. The melting point is the temperature of the solid when its ..... begins to disintegrate A) Solid. B) Particles. C) Crystal lattice. D) None of the above. Show Answer Correct Answer: C) Crystal lattice. 7. What happens to gas pressure when volume decreases? A) Gas pressure increases when volume decreases. B) Gas pressure fluctuates randomly when volume decreases. C) Gas pressure decreases when volume decreases. D) Gas pressure remains constant when volume decreases. Show Answer Correct Answer: A) Gas pressure increases when volume decreases. 8. Solids have ..... kinetic energy A) High. B) Medium. C) Low. D) Equal. Show Answer Correct Answer: C) Low. 9. When does diffusion stop? A) After a day and a night. B) When the particles are evenly spread out. C) When there are no particles left. D) When all the particles leave the system. Show Answer Correct Answer: B) When the particles are evenly spread out. 10. Which of the following would increase the pressure on a system? A) Increase the Temperature. B) Pump in more gas. C) Decrease the volume. D) All of these. Show Answer Correct Answer: D) All of these. 11. When the volume of air in a syringe is reduced at constant pressure, the pressure of in the syringe increases because A) The air molecules collide with the walls of the syringe more frequently. B) The air molecules collide with the walls of the syringe more vigorously. C) The air molecules collide with the walls of the syringe more frequently and more vigourously. D) The number of air molecules in the syringe increases. Show Answer Correct Answer: A) The air molecules collide with the walls of the syringe more frequently. 12. Railroad tracks have gaps between rails so they don't buckle in hot weather because A) Thermal conductivity. B) Specific heat. C) Thermal expansion. D) Thermal insulation. Show Answer Correct Answer: C) Thermal expansion. 13. Gas pressure is caused by A) Gas molecules colliding with surfaces. B) Gas molecules colliding with other gas molecules. C) Gas molecules condensing into a liquid. D) Barometers. Show Answer Correct Answer: A) Gas molecules colliding with surfaces. 14. Which of the following best describes the behavior of liquids compared to gases? A) Liquids expand to fill their container. B) Liquids can be compressed easily. C) Liquids have a definite shape and volume. D) None of the above. Show Answer Correct Answer: C) Liquids have a definite shape and volume. 15. When you push down on a bike tyre, you feel resistance because A) The kinetic energy of the particles increases so the temperature increases. B) The kinetic energy of the particles increases so the pressure increases. C) The volume has increased so the pressure increases. D) The volume has decreased so the pressure increases. Show Answer Correct Answer: D) The volume has decreased so the pressure increases. 16. What is the effect of temperature on the viscosity of a liquid according to the Kinetic Theory? A) Viscosity increases with temperature. B) Viscosity decreases with temperature. C) Viscosity remains constant with temperature. D) Viscosity is not affected by temperature. Show Answer Correct Answer: B) Viscosity decreases with temperature. 17. What would you expect to happen if you decrease the pressure of an ideal gas while keeping the temperature constant? A) The volume will increase. B) The volume will decrease. C) All the above. D) None of the above. Show Answer Correct Answer: A) The volume will increase. 18. When water evaporates from a beaker. Which particles gain enough energy to turn into gas? A) Only the particles on the bottom of the beaker. B) Only the particles on the sides of the beaker. C) Only the particles on the surface of the water. D) Any water particle anywhere within the water. Show Answer Correct Answer: C) Only the particles on the surface of the water. 19. The molecules inside of a solid are ..... in their crystalline pattern. A) Not moving. B) Vibrating. C) Floating randomly. D) None of the above. Show Answer Correct Answer: B) Vibrating. 20. Which of the following best describes the kinetic theory of liquids? A) Particles are in fixed positions and vibrate in place. B) Particles move freely and fill the entire container. C) Particles are closely packed but can move past one another. D) Particles are ionized and conduct electricity. Show Answer Correct Answer: C) Particles are closely packed but can move past one another. 21. Which condition is necessary for mostgases to behave nearly ideally? A) Highpressure. B) High temperature. C) Low compressibility. D) Low expansion. Show Answer Correct Answer: B) High temperature. 22. Which of the following is true about the relationship between pressure and volume when temperature is kept constant? A) As volume increases, pressure increases at a decreasing rate. B) As volume increases, pressure remains unchanged. C) As volume increases, pressure increases at an increasing rate. D) As volume increases, pressure decreases at a decreasing rate. Show Answer Correct Answer: D) As volume increases, pressure decreases at a decreasing rate. 23. Solid ..... particles have no kinetic energy. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. What is the significance of the Maxwell-Boltzmann distribution? A) It explains the chemical reactions in a liquid solution. B) It describes the distribution of speeds of particles in a gas at thermal equilibrium. C) It predicts the behavior of solid materials under stress. D) It models the gravitational forces between celestial bodies. Show Answer Correct Answer: B) It describes the distribution of speeds of particles in a gas at thermal equilibrium. 25. The amount of energy needed change a substance from a solid phase to a liquid phase A) Melting Point. B) Boiling Point. C) Freezing Point. D) Heat of Fusion. E) Heat of Vaporization. Show Answer Correct Answer: D) Heat of Fusion. Next →Related QuizzesClass 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 8Class 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