This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is the best summary of the kinetic theory? A) Potential energy is converted to kinetic energy. B) Atoms and molecules are always in motion. C) Energy cannot be created or destroyed. D) Atomic motion is constant at all temperatures. Show Answer Correct Answer: B) Atoms and molecules are always in motion. 2. Smallest particle of an element to retain it's qualtities. A) Proton. B) Neutron. C) Electron. D) Atom. E) Quark. Show Answer Correct Answer: D) Atom. 3. What are the units for measuring density of a solid? A) Grams. B) M/s$^{2}$. C) G/cm$^{3}$. D) Newtons. Show Answer Correct Answer: C) G/cm$^{3}$. 4. What role do collisions play in the molecular kinetic theory? A) Collisions cause molecules to interact and transfer energy. B) Collisions have no impact on molecular interactions. C) Collisions always result in the destruction of molecules. D) Collisions do not affect energy transfer between molecules. Show Answer Correct Answer: A) Collisions cause molecules to interact and transfer energy. 5. Absolute zero is defined as A) O$^{o }$Celcius. B) O Kelvin. C) 273.15$^{o}$ Celcius. D) 273.15 Kelvin. Show Answer Correct Answer: B) O Kelvin. 6. Select the statements that are correct for liquids. A) The particles are spaced far apart. B) The particles move at low speeds. C) The particles are in fixed positions. D) The forces between particles are very strong. E) The particles can only vibrate. Show Answer Correct Answer: B) The particles move at low speeds. 7. An ideal gas has a density of 2.0 kgm$^{-3}$ at a pressure of 2.2 x 10$^{5}$ Pa and a temperature of 295 K. Calculate the root mean square speed of the gas atoms. A) 330 kms$^{-1}$. B) 110 000 ms$^{-1}$. C) 373 ms$^{-1}$. D) 19 ms$^{-1}$. Show Answer Correct Answer: A) 330 kms$^{-1}$. 8. What is the variable for this number:25.7 g? A) P. B) T. C) N. D) M. Show Answer Correct Answer: D) M. 9. The average translational kinetic energy of O$_{2}$ (molar mass 32) molecules at a particular temperature is 0.048 eV. The translational kinetic energy of N$_{2}$ (molar mass 28) molecules (in eV) at the same temperature is A) 0.0015. B) 0.003. C) 0.048. D) 0.768. Show Answer Correct Answer: C) 0.048. 10. How do covalent bonds form? A) Donating & receiving valence e-between atoms. B) Opposite slight charges attract each other between compounds. C) Scientists are still not sure how they form. D) Sharing valence e-between atoms. Show Answer Correct Answer: D) Sharing valence e-between atoms. 11. What phase is this describing?Has no definite shape, Has a definite volume, Particles move quickly, Particles have strong forces between them A) Solid. B) Liquid. C) Gas. D) None!. Show Answer Correct Answer: B) Liquid. 12. Which of the following comparison between molecules in water and molecules in steam is correct? A) Water molecules are bigger. B) Water molecules are heavier. C) Water molecules are further apart. D) Greater forces between water molecules. Show Answer Correct Answer: D) Greater forces between water molecules. 13. What leads to a change of phase in matter? A) A change in the number of particles. B) A change in the amount of kinetic energy. C) A change in the direction of particle movement. D) A change in the shape of the container. Show Answer Correct Answer: B) A change in the amount of kinetic energy. 14. What is 50 C in Kelvin? A) 223. B) 323. C) 100. D) 50. Show Answer Correct Answer: B) 323. 15. Absolute zero is the temperature (in Kelvin), at which, only in theory ..... A) All particles stop moving. B) Time stands still. C) Space and time merge. D) Energy goes to infinity. Show Answer Correct Answer: A) All particles stop moving. 16. What is the average velocity of the molecules of an ideal gas? A) Infinity. B) Constant. C) Unstable. D) Zero. Show Answer Correct Answer: D) Zero. 17. Which of the following statements DOES NOT represent the ideal gas law? A) Pressure is directly proportional to the absolute temperature. B) Pressure is inversely proportional to volume. C) Volume is directly proportional to the absolute temperature. D) Volume is directly proportional to pressure. Show Answer Correct Answer: D) Volume is directly proportional to pressure. 18. The random motion of the particles in a substance is greatest when the substance is: A) Condensed. B) Gas. C) Frozen. D) Liquid. Show Answer Correct Answer: B) Gas. 19. Gases have a(n) ..... volume. A) Definite. B) Indefinite. C) All the above. D) None of the above. Show Answer Correct Answer: B) Indefinite. 20. A solid forms when the average kinetic energy of a substance's particles A) Increases. B) Decreases then increases. C) Decreases. D) Creates a random arrangement. Show Answer Correct Answer: C) Decreases. 21. Which experiment would best demonstrate the kinetic theory of liquids? A) Observing the diffusion of ink in water. B) Measuring the boiling point of water. C) Freezing water to form ice. D) Heating a solid to form a liquid. Show Answer Correct Answer: A) Observing the diffusion of ink in water. 22. The ..... of a substance is the temperature of the substance when its vapor pressure equals the pressure exerted on the surface of the liquid A) Freezing point. B) Boiling point. C) Vapor point. D) Vapor pressure. Show Answer Correct Answer: B) Boiling point. 23. Which of the following is NOT a part of the Kinetic Model of Matter? A) All matter is made up of tiny particles. B) Occasionally, particles stop moving. C) Particles are always in continuous and random motion. D) The type of movement of particles depends on the amount of energy. Show Answer Correct Answer: B) Occasionally, particles stop moving. 24. The kinetic energy of a gas is dependent on temperature A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Which statement is true about the energy of particles in a liquid? A) All particles have the same energy. B) Particles have varying energy levels and move at different speeds. C) Particles do not move and have no energy. D) Particles only move when energy is added externally. Show Answer Correct Answer: B) Particles have varying energy levels and move at different speeds. ← 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 8Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 9Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books