This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 16 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Light travels through a liquid at 2.25 EE 8 m/s. What is the index of the liquid? A) 1.0. B) 2.45. C) 1.33. D) 1.523. Show Answer Correct Answer: C) 1.33. 2. The law of universal gravitation states that any two objects in the universe that have mass, without exception ..... A) Attract each other. B) Combine to provide a balanced force. C) Repel each other. D) Create friction. Show Answer Correct Answer: A) Attract each other. 3. What is the derived unit for energy? A) Kilojoules. B) Watts. C) Kilograms per cubic meter. D) Joules. Show Answer Correct Answer: D) Joules. 4. Quantum Mechanics is one of the fields in Modern Physics. Which of the following is a scope of study of Quantum Mechanics? A) Regularly sized objects. B) Microscopic objects. C) Speed less than 1% of the speed of light. D) Involves weak gravitational fields. Show Answer Correct Answer: B) Microscopic objects. 5. Which of the following prefix is equivalent to 10-6? A) Milli. B) Mega. C) Micro. D) Nano. Show Answer Correct Answer: C) Micro. 6. The electric current changes its direction periodically. A) Electric Current. B) Ohm's Law. C) Alternating Current (AC). D) Direct Current (DC). Show Answer Correct Answer: C) Alternating Current (AC). 7. Moving masses cause disturbances in this ..... A) Gravity. B) Speed. C) Astronomy. D) Space. Show Answer Correct Answer: D) Space. 8. Which would not typically be found around black hole? A) Accretion disk. B) Orbiting companion star. C) Jet. D) Wormhole. Show Answer Correct Answer: D) Wormhole. 9. What will happen to the acceleration due to gravity that an object experiences if from Earth, it is transported to Jupiter? A) It decreases. B) It becomes zero. C) It increases. D) It stays the same. Show Answer Correct Answer: C) It increases. 10. Things orbit in a(n) ..... A) Square. B) Circle. C) Ellsip. D) Parabola. Show Answer Correct Answer: C) Ellsip. 11. Which of the following is a problem that some people blame on technology? A) Economic growth. B) Widespread pollution. C) Reduction of acid rain. D) Improved transportation. Show Answer Correct Answer: B) Widespread pollution. 12. Intensity of sound has A) No existence. B) An object existence. C) A subject existence. D) Both subjective and objective existence. Show Answer Correct Answer: B) An object existence. 13. How many yards is 9 mi? A) 15 840 yards. B) 16 040 yards. C) 12 672 yards. D) 14 500 yards. Show Answer Correct Answer: A) 15 840 yards. 14. Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension? A) Impulse and moment of force. B) Pressure and Young's modules. C) Planck's constant and Angular momentum. D) Force and rate of change of linear momentum. Show Answer Correct Answer: A) Impulse and moment of force. 15. An electron traveling horizontally from North to South enters a region where a uniform electric field is directed downward. What is the direction of the electric force exerted on the electron once it has entered the field? A) To the east. B) To the west. C) Downward. D) Upward. Show Answer Correct Answer: D) Upward. 16. Hot sand cools off faster at night than plants and vegetation. Then, the specific heat capacity of sand is A) Likely the same as that of plants. B) Not enough information to answer. C) Less than that of plants. D) More than that of plants. Show Answer Correct Answer: C) Less than that of plants. 17. If the fluid pressure is 800 psi in a 1/2 inch line supplying an actuating cylinder with a piston aren of 10 square inches, the force exerted on the piston will be A) 4000 pounds. B) 8000 pounds. C) 800 pounds. D) None of above. Show Answer Correct Answer: B) 8000 pounds. 18. The light is focused by the lens system of the eye into an inverted image at the photosensitive ..... A) Eye muscle. B) Cornea. C) Retina. D) Optical Nerve. Show Answer Correct Answer: C) Retina. 19. If we have two resistors ( $ R_1$ = 20 $ \Omega$, $ R_2$ = 40 $ \Omega$ ) connected in series, then $ R_{eq}$ in ( $ \Omega$ ) is A) 13.3. B) 2. C) 60. D) 20. Show Answer Correct Answer: C) 60. 20. It is the unit of capacitance. A) Ampere. B) Farad. C) Coulomb. D) Volts. Show Answer Correct Answer: B) Farad. 21. What is a way to reduce friction? A) Press down harder. B) Use a lubricant. C) Make the surface rougher. D) Add weight. Show Answer Correct Answer: B) Use a lubricant. 22. What is the maximum value of deforming force upto which a material shows elastic property and above which the material loses it? A) Elastic Limit. B) Stress. C) Elasticity. D) Strain. Show Answer Correct Answer: A) Elastic Limit. 23. Which of the following is an absolute? A) Mass. B) Time. C) Velocity. D) Weight. Show Answer Correct Answer: A) Mass. 24. Which law is also called law of inertia? A) Newton first law. B) Newton second law. C) Newton third law. D) All of above. Show Answer Correct Answer: A) Newton first law. 25. What is the limit of proportionality? A) The length a spring can be stretched to before it becomes inelastically deformed. B) The length a spring has been stretched to once it becomes inelastically deformed. C) The most force a spring can hold. D) None of above. Show Answer Correct Answer: A) The length a spring can be stretched to before it becomes inelastically deformed. 26. It is made up of a number and unit. A) Unit prefixes. B) Metric system. C) Measurement. D) Basic units. Show Answer Correct Answer: C) Measurement. 27. Against the sheet, the egg did not break because the sheet applied a small force over? A) A longer time. B) A shorter time. C) A smaller area. D) A larger area. Show Answer Correct Answer: A) A longer time. 28. Which among the following order of decreasing wavelengths of electromagnetic waves is correct? I. Radio waves II. Infrared rays III. Visible Light IV. X-Rays A) I, III, II, IV. B) II, I, IV, III. C) IV, III, II, I. D) I, II, III, IV. Show Answer Correct Answer: D) I, II, III, IV. 29. Which of the following is not a contact force A) Magnetism. B) Air resistance. C) Friction. D) Tension. Show Answer Correct Answer: A) Magnetism. 30. What is the area under a acceleration-time graph equal to? A) Distance. B) Velocity. C) Acceleration. D) Displacement. Show Answer Correct Answer: B) Velocity. 31. A(n) ..... bond forms between a metal and a non-metal. A) Ionic. B) Covalent. C) Weight. D) None of above. Show Answer Correct Answer: A) Ionic. 32. A device that can store electric charge, and normally consists of two conducting objects placed near each other but not touching. A) Capacitor. B) Condensers. C) Insulators. D) Dielectric. Show Answer Correct Answer: A) Capacitor. 33. Calculate kinetic energy of 0.25mol of He at 127degress celcius (R= 8.31) A) 6427j. B) 1190j. C) 1247j. D) 1210j. Show Answer Correct Answer: C) 1247j. 34. Weight is an example of which quantity? A) D pressure. B) A acceleration. C) C mass. D) B force. Show Answer Correct Answer: D) B force. 35. Aspect ratio of a wing is defined as the ratio of the A) Wingspan to the wing root. B) Square of the chord to the wingspan. C) Wingspan to the mean chord. D) None of above. Show Answer Correct Answer: C) Wingspan to the mean chord. 36. What term refers to any object upon which the only force acting is gravity? A) Trajectory. B) Projectile. C) Free fall. D) Thing. Show Answer Correct Answer: B) Projectile. 37. The rapid transfer of ..... energy is the cause of injuries in a car collision. A) Kinetic. B) Potential. C) Gravitational. D) Electrical. Show Answer Correct Answer: A) Kinetic. 38. Which of the following makes momentum a vector quantity? A) It has direction and magnitude. B) It has magnitude and speed. C) It has speed and mass. D) It has mass and magnitude. Show Answer Correct Answer: A) It has direction and magnitude. 39. The kind of image formed by all convex mirrors is A) Virtual. B) Real. C) Inverted. D) Erect or upright. Show Answer Correct Answer: A) Virtual. 40. Resolve vector L into components Lx and Ly if the length of vector L is 15 m and its reference angle is 200. A) 14 m, 5 m. B) 14.1, 5.13 m. C) 14.2, 5.20 m. D) 13.9 m, 5.10 m. Show Answer Correct Answer: A) 14 m, 5 m. 41. Inside an aeroplane, flying at a high altitude, A) The pressure is the same as that outside. B) Normal humidity and partial vacuum are maintained. C) The pressure inside is less than the pressure outside. D) Normal atmospheric pressure is maintained by the use of air pumps. Show Answer Correct Answer: D) Normal atmospheric pressure is maintained by the use of air pumps. 42. It refers to the closeness of two or more measurements to each other A) Least count. B) Precision. C) Unit equality. D) Accuracy. Show Answer Correct Answer: B) Precision. 43. Who discovered the evolution of stars A) Albert Einstein. B) Sir CV Raman. C) S Chendrashekaran. D) Chandrababu ft. Show Answer Correct Answer: C) S Chendrashekaran. 44. The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called A) Nuclear fission. B) Nuclear fusion. C) Nuclear reaction. D) Fast breeding. Show Answer Correct Answer: A) Nuclear fission. 45. Which of the following statements is false about electric field lines A) Electric field lines cannot cross. B) Electric field lines are always straight lines. C) Electric field lines show how a proton would move in an electric field. D) Electric field lines point away from positive charge. Show Answer Correct Answer: B) Electric field lines are always straight lines. 46. The electrical force between charges is strongest when the charges are A) The electric force is constant everywhere. B) There is no pattern. C) Far apart. D) Close together. Show Answer Correct Answer: D) Close together. 47. Which of the following laws is accounted for when a closed calorimeter is used in an experiment to determine the amount of heat transferred? A) Law of Entropy. B) Zeroth Law of Thermodynamics. C) Law of Conservation of Energy. D) All of the above. Show Answer Correct Answer: C) Law of Conservation of Energy. 48. When capacitors is arrange in series (3 capacitors), the equivalent capacitance C is A) 1/C = 1/C1 + 1/C2 + 1/C3. B) C = C1 + C2 + C3. C) C = QV1 + QV2 + QV3. D) C = CR1 + CR2 + CR3. Show Answer Correct Answer: A) 1/C = 1/C1 + 1/C2 + 1/C3. 49. Why do scientists use models. A) To make predictions. B) To interpret data. C) To determine if variables are related. D) To make predictions, interpret data, and determine if variables are related. Show Answer Correct Answer: D) To make predictions, interpret data, and determine if variables are related. 50. Which of these temperatures is likely when a container of water at 20$^ \circ$C is mixed with water at 28$^ \circ$C? A) 30$^ \circ$C. B) 22$^ \circ$C. C) 18$^ \circ$C. D) 38$^ \circ$C. Show Answer Correct Answer: B) 22$^ \circ$C. 51. What is wave speed? A) The number of complete cycles per second. B) The time taken to complete one cycle. C) The displacement between equilibrium position and maximum position. D) The distance travelled by a wave in one second. Show Answer Correct Answer: D) The distance travelled by a wave in one second. 52. What is the most accurate and precise method to measure the thickness of a coin? A) A Use a micrometer screw gauge. B) B Use a ruler and look at the scale perpendicularly. C) C Use a top pan balance. D) D Use the displacement method with water in a measuring cylinder. Show Answer Correct Answer: A) A Use a micrometer screw gauge. 53. What does the letter 'I' stand for in Ohm's Law? A) Voltage. B) Charge. C) Capacitance. D) Current. Show Answer Correct Answer: D) Current. 54. Persistence of vision is the principle behind? A) Cinema. B) Periscope. C) Camera. D) Spectroscope. Show Answer Correct Answer: A) Cinema. 55. A hair dryer draws 1 200 W, a curling iron draws 800 W, and an electric light fixture draws 500 W. If all three of these appliances are operating in parallel on a 120-V circuit, what is the total current drawn? A) 20.8 A. B) 36.7 A. C) 25.4 A. D) 19.4 A. Show Answer Correct Answer: A) 20.8 A. 56. The SI unit consists of ..... fundamental units. A) Seven. B) Three. C) Two. D) Six. Show Answer Correct Answer: A) Seven. 57. In series connection of capacitors, what is conserved physically? A) Voltage. B) Stored charge. C) Capacitance. D) Distance. Show Answer Correct Answer: B) Stored charge. 58. An object undergoing simple harmonic motion has a period of 0.007 s. What is its frequency? A) 24.29 Hz. B) 14.29 Hz. C) 142.86 Hz. D) 242.86 Hz. Show Answer Correct Answer: C) 142.86 Hz. 59. A wave signal passes a point with 5 complete oscillations in 2 seconds. What is the frequency of the wave? A) 10 Hz. B) 5/2 Hz. C) 2/5 Hz. D) 7 Hz. Show Answer Correct Answer: B) 5/2 Hz. 60. What is the formula for calculating momentum? A) P=m/v. B) M=mv. C) P=vm. D) P=v/m. Show Answer Correct Answer: C) P=vm. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books