This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The particles that make up matter are: A) Never moving. B) Stationary more often than moving. C) Moving more often than not. D) Always moving. Show Answer Correct Answer: D) Always moving. 2. What is the relationship between the average kinetic energy of gas molecules and temperature? A) Directly proportional. B) Inversely proportional. C) No relationship. D) Exponentially proportional. Show Answer Correct Answer: A) Directly proportional. 3. Particles of solids ..... A) Are free to flow around and past each other. B) Move fast in straight lines until they collide with each other or the container walls. C) Do not move at all. D) Vibrate in place. Show Answer Correct Answer: D) Vibrate in place. 4. When a gas absorbs heat ..... A) The particles move slower. B) The particles move faster. C) All the above. D) None of the above. Show Answer Correct Answer: B) The particles move faster. 5. What is the relationship between energy and particle movement? A) Energy has no effect on movement. B) More energy means slower movement. C) More energy means faster movement. D) Less energy means faster movement. Show Answer Correct Answer: C) More energy means faster movement. 6. When gas particles collide with the walls of a container or with other gas particles, ..... of the energy is lost. A) 1/3. B) None. C) All the above. D) None of the above. Show Answer Correct Answer: B) None. 7. A subatomic particle that has a negative charge A) Quark. B) Electron. C) Neutron. D) Proton. E) Atom. Show Answer Correct Answer: B) Electron. 8. What is the relationship between pressure and volume in Boyle's Law? A) Pressure is independent of volume. B) Pressure is directly proportional to volume. C) Pressure is equal to volume. D) Pressure is inversely proportional to volume. Show Answer Correct Answer: D) Pressure is inversely proportional to volume. 9. As altitude increases, pressure increase. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. When a gas undergoes continuous throttling process by a valve and its pressure and temperature are plotted, then we get a A) Isotherm. B) Isobar. C) Isenthalpe. D) Adiabatic. Show Answer Correct Answer: C) Isenthalpe. 11. If object A has a temperature of 100 K, and object B has a temperature of 200 K, which object has a higher kinetic energy? A) Object A. B) Object B. C) All the above. D) None of the above. Show Answer Correct Answer: B) Object B. 12. What happens to the pressure of a gas if its volume is decreased at constant temperature? A) Pressure decreases. B) Pressure remains constant. C) Pressure becomes zero. D) Pressure increases. Show Answer Correct Answer: D) Pressure increases. 13. A kinetic theory formula relating the pressure p and the volume V of a gas to the root-mean-square speed of its molecules is $p=\frac{1}{3}\\frac{Nm}{V}$ A) Thetotal number of molecules in one mole of gas. B) Thetotal number of molecules present in volume V. C) Thenumber of molecules in unit volume of the gas. D) Themass of gas present in volume V. Show Answer Correct Answer: D) Themass of gas present in volume V. 14. How does the Kinetic Theory of Liquids relate to the concept of evaporation? A) Particles gain energy and move to the liquid phase. B) Particles lose energy and move to the liquid phase. C) Particles gain energy and escape to the gas phase. D) Particles lose energy and escape to the gas phase. Show Answer Correct Answer: C) Particles gain energy and escape to the gas phase. 15. We cannot compress most solids and liquids, but a gas ..... A) Is not a state of matter. B) Can be compressed. C) Is always heavier than a solid. D) Makes an excellent chair. Show Answer Correct Answer: B) Can be compressed. 16. Particles have enough energy to overcome the attraction between them. Does not have a fixed volume or shape. A) Plasma. B) Solid. C) Bose-Einstein Condensate. D) Gas. E) Liquid. Show Answer Correct Answer: D) Gas. 17. How many parts are there to the Kinetic Theory? A) 1. B) 2. C) 3. D) None of the above. Show Answer Correct Answer: C) 3. 18. ..... is an explanation of how particles in matter behave A) Boyle's Law. B) Charles' Law. C) Kinetic Molecular Theory. D) None of the above. Show Answer Correct Answer: C) Kinetic Molecular Theory. 19. Collisions between molecules are perfectly elastic. A) Real gas. B) Ideal gas. C) Both. D) None. Show Answer Correct Answer: B) Ideal gas. 20. When matter is decreasing in temperature the particles ..... A) Move slower and get closer together. B) Move slower and get farther apart. C) Do not change speed or distance from one another. D) None of the above. Show Answer Correct Answer: A) Move slower and get closer together. 21. The temperature of a gas depends on A) The average kinetic energy of the gas particles. B) The pressure of the gas particles. C) The mass of the gas particles. D) The volume of the gas particles. Show Answer Correct Answer: A) The average kinetic energy of the gas particles. 22. How does the Kinetic Theory explain the pressure exerted by gases? A) Pressure is due to the weight of the gas particles. B) Pressure is due to the collisions of gas particles with the walls of the container. C) Pressure is due to the attraction between gas particles. D) Pressure is due to the repulsion between gas particles. Show Answer Correct Answer: B) Pressure is due to the collisions of gas particles with the walls of the container. 23. 10 litres of gas is at a pressure of 200kPa. The pressure is reduced to 100 kPa, what is the new volume? A) 40 litres. B) 20 litres. C) 10 litres. D) 5 litres. Show Answer Correct Answer: B) 20 litres. 24. According to the Kinetic Molecular Theory, particles in solids exhibit this type of motion, A) Vibrational. B) Translational and vibrational only. C) Vibrational and rotational only. D) Rotational, vibrational and translational. Show Answer Correct Answer: A) Vibrational. 25. What does a 'region with high concentration' mean? A) An area with a SMALL number of particles. B) An area with a LARGE number of particles. C) An area with an UNEVEN number of particles. D) An area with no particles. Show Answer Correct Answer: B) An area with a LARGE number of particles. 26. Solids have ..... A) A definite shape but not a definite volume. B) No definite volume no definite shape. C) Definite volume and definite shape. D) Definite color. Show Answer Correct Answer: C) Definite volume and definite shape. 27. The kinetic theory of matter states that all particles are constantly A) Contracting. B) Reacting. C) Moving. D) Growing. Show Answer Correct Answer: C) Moving. 28. A piece of ice cube feels cool to the skin when touched. Which of the following statements is correct? A) Heat is transferred from the ice cube to the skin. B) Coldness is transferred from the skin to the ice cube. C) Heat is transferred from the skin to the ice cube. D) Coldness is transferred from the ice cube to the skin. Show Answer Correct Answer: C) Heat is transferred from the skin to the ice cube. 29. If an element has 19 protons, 22 neutrons, and 18 electrons, what is the charge of the sample? A) 0. B) +2. C) +1. D) -1. Show Answer Correct Answer: C) +1. 30. Ionic compounds are formed when one or more valence electrons are transferred from ..... A) A nonmetal atom to a nonmetal atom. B) A metal atom to a nonmetal atom. C) A metal atom to a metal atom. D) A nonmetal atom to a metal atom. Show Answer Correct Answer: B) A metal atom to a nonmetal atom. 31. All changes in the state of matter of a substance requires A) Water. B) Permission. C) Energy. D) Vibration. Show Answer Correct Answer: C) Energy. 32. According to the kinetic-molecular theory, particles of matter A) Are always fluid. B) Are in constant motion. C) Have different shapes. D) Have different colors. Show Answer Correct Answer: B) Are in constant motion. 33. The amount of energy given off when a gas turns into a liquid (also the amount of energy absorbed when a gas turns back into a liquid). A) Heat of Fusion. B) Melting Point. C) Boiling Point. D) Heat of Vaporization. Show Answer Correct Answer: D) Heat of Vaporization. 34. The forces of attraction that occur between molecules are called: A) Intermolecular forces. B) Intramolecular forces. C) Chemical bonds. D) None of the above. Show Answer Correct Answer: A) Intermolecular forces. 35. The force of attraction between the molecules in a substance is known as the ..... force. A) Intermolecular. B) Intergalactic. C) Interstate. D) Intracoastal. Show Answer Correct Answer: A) Intermolecular. 36. If you increase the pressure, what will happen to the temperature, if volume is constant? A) It will Blow Up. B) Increase. C) Stay the same. D) Decrease. Show Answer Correct Answer: B) Increase. 37. What is the main difference between liquids and gasses? A) Liquids are fluids, gasses are not. B) All liquids are clear, but not all gasses are. C) All gasses are liquids, but not all liquids are gasses. D) Liquids change shape, but keep volume. Gasses change both shape and volume. Show Answer Correct Answer: D) Liquids change shape, but keep volume. Gasses change both shape and volume. 38. What happens to the flow of a fluid as its velocity increases? A) It is experiencing low pressure. B) The fluid's volume decreases. C) It is experiencing high pressure. D) The temperature rises. Show Answer Correct Answer: A) It is experiencing low pressure. 39. When does a real gas obey the ideal gas equation closely? A) At high pressure and low temperature. B) At low pressure and high temperature. C) At low pressure and low temperature. D) At high pressure and high temperature. Show Answer Correct Answer: B) At low pressure and high temperature. 40. What happens when the temperature of a liquid increases? 0625/22/F/M/23 A) The volume of the liquid increases, making the liquid less dense. B) The volume of the liquid increases, making the liquid more dense. C) The mass of the liquid increases, making the liquid less dense. D) The mass of the liquid increases, making the liquid more dense. Show Answer Correct Answer: A) The volume of the liquid increases, making the liquid less dense. 41. How do you convert from $^{o}$C to K? A) Add 273. B) Divide by 273?. C) Multiply by 273. D) Subtract 273. Show Answer Correct Answer: A) Add 273. 42. Which experiment can demonstrate the Kinetic Theory of Liquids? A) Watching food coloring spread in water. B) Observing the melting of ice. C) Measuring the boiling point of water. D) Freezing a liquid to a solid. Show Answer Correct Answer: A) Watching food coloring spread in water. 43. The state of matter with definite (fixed) volume but not definite (fixed) shape. A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: B) Liquid. 44. What is the graph we'll get if we plot mean kinetic energy $E_k$ $T$ A) Straight line with positive gradient. B) Quadratic curve. C) Straight line with negative gradient. D) Circle. Show Answer Correct Answer: A) Straight line with positive gradient. 45. What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?PV=nRT A) 14.2 atm. B) 22.5 atm. C) 16.5 atm. D) 18.4 atm. Show Answer Correct Answer: A) 14.2 atm. 46. A sample of nitrogen occupies 5.50 liters under a pressure of 900 Pa at 25$^{o}$C. At what temperature will it occupy 10.0 liters at the same pressure? A) 49 $^{0}$C. B) 269 $^{0}$C. C) -109 $^{0}$C. D) 54 $^{0}$C. Show Answer Correct Answer: B) 269 $^{0}$C. 47. To increase the pressure of a fixed mass of gas at constant pressure you could A) Look really hard at it. B) Heat it up. C) Cool it down. D) Shine light on it. Show Answer Correct Answer: B) Heat it up. 48. When a balloon filled with air is placed in the freezer, the balloon will A) Expand. B) Shrink. C) Stay the same size but decrease in temperature. D) Stay the same size and temperature. Show Answer Correct Answer: B) Shrink. 49. A gas has a volume of 480 ml at 90.0 mmHg pressure. What pressure is needed to changethe volume of the gas to 320 ml? A) 100 mmHg. B) 80.0 mmHg. C) 135 mmHg. D) 60.0 mmHg. Show Answer Correct Answer: C) 135 mmHg. 50. The motion of energy is called A) Kinetic Energy. B) Electrostatic Energy. C) Gravitational Energy. D) None of the above. Show Answer Correct Answer: A) Kinetic Energy. 51. According to the kinetic theory, what is the effect of decreasing the volume of a gas while keeping the temperature constant? A) The pressure remains constant. B) The pressure decreases. C) The gas turns into a liquid. D) The pressure increases. Show Answer Correct Answer: D) The pressure increases. 52. These are counted to come up with the atomic number-it is also how we identify an element and its properties. A) Electron. B) Neutron. C) Atom. D) Quark. E) Proton. Show Answer Correct Answer: E) Proton. 53. What happens to the particles in a liquid when it is heated? A) They move faster. B) They stop moving. C) They move in a fixed pattern. D) They move slower. Show Answer Correct Answer: A) They move faster. 54. What is the significance of the Boltzmann constant? A) It relates pressure to volume in gases. B) It defines the gravitational constant in physics. C) The Boltzmann constant is significant as it connects temperature to energy at the microscopic level. D) It measures the speed of light in a vacuum. Show Answer Correct Answer: C) The Boltzmann constant is significant as it connects temperature to energy at the microscopic level. 55. According to the kinetic theory of gases, gas particles A) Do not always move in straight lines. B) Have most their volume occupied by empty space. C) Attract each other. D) Do not always move randomly. Show Answer Correct Answer: B) Have most their volume occupied by empty space. 56. Which of the following statements is true regarding the behavior of gases? A) Gases have a definite shape and volume. B) Gases expand to fill their container. C) Gases are incompressible. D) None of the above. Show Answer Correct Answer: B) Gases expand to fill their container. 57. When a cold tyre is inflated to a certain pressure and then is warmed up due to friction with the road, the pressure increases. This happens because the A) Air molecules hit the walls of the tire less frequently. B) Rubber in the tires reacts with oxygen in the atmosphere. C) Air molecules speed up and collide with the tire walls more often. D) Air molecules diffuse rapidly through the walls of the tire. Show Answer Correct Answer: C) Air molecules speed up and collide with the tire walls more often. 58. What type of relationship is Charles' Law? A) Direct. B) Inverse. C) All the above. D) None of the above. Show Answer Correct Answer: A) Direct. 59. How does the Kinetic Theory of Liquids explain the process of diffusion? A) Particles move from areas of low concentration to high concentration. B) Particles move randomly and spread out evenly over time. C) Particles do not move, preventing diffusion. D) Particles move in a fixed pattern, causing diffusion. Show Answer Correct Answer: B) Particles move randomly and spread out evenly over time. 60. The bubbles in the boiling water are ..... A) Sulfur. B) The particles that do not have sufficient energy. C) Atractive forces. D) Gas particles with high energy. Show Answer Correct Answer: D) Gas particles with high energy. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books