VU Midterm Past Papers
159 solved midterm past paper MCQs for PHY101 (Physics) at Virtual University, each with the correct answer marked. Use them to learn the VU question style and test your recall. An independent study tool — not affiliated with VU.
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Q1. Light year is a unit of:
Q2. A force of 100 N acts upon a body for five seconds. What will be the change in momentum?
Q3. Add two vectors of length 4 m & 5 m but their orientation is not known. The length after addition of these two vectors will be:
Q4. Example of physical quantity is:
Q5. An inelastic collision is one in which:
Q6. Acceleration in a body is always produced in the direction of:
Q7. Ali wants to lift a mass of 7.5 kg with constant velocity by a rope that passes through a frictionless pulley which is attached to the ceiling of room. Calculate the tension in the rope by neglecting the mass of the rope.
Q8. Newton-second is SI unit of:
Q9. The area under the curve of force-displacement graph represents:
Q10. When you step on the accelerator to increase the speed of your car, the force that accelerates the car is?
Q11. Is the total momentum of a system is changing?
Q12. If the acceleration of a body is not uniform, then velocity-time graph will be:
Q13. The goal of all scientific inquiry (or scientific method) is:
Q14. The law of conservation of momentum applies to a system of colliding objects only if:
Q15. Work has dimensions like:
Q16. The work done by gravity during the descent of a projectile:
Q17. An object moves in a circle at constant speed. The work done by the centripetal force is zero because:
Q18. The dimensional units of ratio of work and power is:
Q19. A heavy particle moving with 5 m/s suffers an elastic collision with a light particle at rest. After collision, the velocity of light particle will be:
Q20. Which of the following statement/s is / are true?
Q21. The law of inertia was firstly formulated by:
Q22. The product of force and time is called change in:
Q23. It is easier to walk on the concrete road than on ice because:
Q24. What is the angle of projection of projectile, for which its maximum height and horizontal range are equal?
Q25. The SI standard of time is based on:
Q26. A net torque applied to a rigid object always tends to produce:
Q27. An object attached to one end of a spring makes 20 vibrations in 10 s. Its angular frequency is:
Q28. In simple harmonic motion, the restoring force must be proportional to the:
Q29. Mercury is a convenient liquid to use in a barometer because:
Q30. The units of the electric field are:
Q31. A farad is the same as a
Q32. We desire to make an LC circuit that oscillates at 100 Hz using an inductance of 2.5H. We also need a capacitance of:
Q33. Which of the following statements is NOT TRUE about electromagnetic?
Q34. Radio waves and light waves are ____________________________.
Q35. Wien's Law states that, λmax = ________ K.
Q36. Interference of light is evidence that:
Q37. Fahrenheit and Kelvin scales agree numerically at a reading of:
Q38. According to the theory of relativity:
Q39. Light from a stationary spaceship is observed, and then the spaceship moves directly away from the observer at high speed while still emitting the light. As a result, the light seen by the observer has:
Q40. How fast should you move away from a 6.0 × 10¹⁴ Hz light source to observe waves with a frequency of 4.0 × 10¹⁴ Hz?
Q41. The quantum number n is most closely associated with what property of the electron in a hydrogen atom?
Q42. The quantum number ms is most closely associated with what property of the electron in an atom?
Q43. As the wavelength of a wave in a uniform medium increases, its speed will____.
Q44. The lowest tone produced by a certain organ comes from a 3.0-m pipe with both ends open. If the speed of sound is 340m/s, the frequency of this tone is approximately:
Q45. To raise the pitch of a certain piano string, the piano tuner:
Q46. For an object in equilibrium the net torque acting on it vanishes only if each torque is calculated about:
Q47. Ten seconds after an electric fan is turned on, the fan rotates at 300 rev/min. Its average angular acceleration is:
Q48. A 4.0-N puck is traveling at 3.0m/s. It strikes a 8.0-N puck, which is stationary. The two pucks stick together. Their common final speed is:
Q49. An object moving in a circle at constant speed:
Q50. A plane traveling north at 200m/s turns and then travels south at 200m/s. The change in its velocity is:
Q51. At time t = 0 a car has a velocity of 16 m/s. It slows down with an acceleration given by −0.50t, in m/s² for t in seconds. It stops at t =
Q52. 1 mi is equivalent to 1609 m so 55 mph is:
Q53. The number of significant figures in 0.00150 is:
Q54. One revolution is the same as:
Q55. For a body to be in equilibrium under the combined action of several forces:
Q56. A bucket of water is pushed from left to right with increasing speed across a horizontal surface. Consider the pressure at two points at the same level in the water.
Q57. Capacitors C1 and C2 are connected in series. The equivalent capacitance is given by
Q58. If the potential difference across a resistor is doubled:
Q59. By using only two resistors, R1 and R2, a student is able to obtain resistances of 3Ω, 4Ω, 12Ω, and 16 Ω. The values of R1 and R2 (in ohms) are:
Q60. Faraday's law states that an induced emf is proportional to:
Q61. A generator supplies 100V to the primary coil of a transformer. The primary has 50 turns and the secondary has 500 turns. The secondary voltage is:
Q62. Which of the following electromagnetic radiations has photons with the greatest energy?
Q63. A virtual image is one:
Q64. What is the unit of magnification factor?
Q65. During an adiabatic process an object does 100 J of work and its temperature decreases by 5K. During another process it does 25 J of work and its temperature decreases by 5 K. Its heat capacity for the second process is.
Q66. An ideal gas expands into a vacuum in a rigid vessel. As a result there is:
Q67. The Stern-Gerlach experiment makes use of:
Q68. A large collection of nuclei are undergoing alpha decay. The rate of decay at any instant is proportional to:
Q69. As a 2.0-kg block travels around a 0.50-m radius circle it has an angular speed of 12 rad/s. The circle is parallel to the xy plane and is centered on the z axis, a distance of 0.75m from the origin. The z component of the angular momentum around the origin is:
Q70. The value of k in coulombs law depends upon
Q71. The ratio of circumference of a circle to its diameter is equal to;
Q72. A water bed that is 1.5 m wide and 2.5m long weighs 1055 N. Assuming the entire lower surface of the bed is in contact with the floor, what is the pressure the bed exerts on the floor?
Q73. The center of gravity is the average location of the ______of and object.
Q74. As per Coulomb’s law, the force of attraction or repulsion between two points charges directly proportional to the.
Q75. are the speed of sound to be 340 m/s. A thunder clap is heard about 3 s after the lightning is seen. The source of both light and sound is:
Q76. If the distance between all pairs of particles of the body do not change by applying a force then the body is said to be.
Q77. For an ideal fluid following through a horizontal pipe, Bernoulli’s equation states that the sum of the pressure and energy per unit volume along the pipe does which of the following? (Assume measurement are taken along the pipe in the direction of fluid flow.)
Q78. Which of the following statement is true?
Q79. A/an ________ is the basic reason to change in the motion of an object according to Newton’s second law of motion
Q80. When a spring is compressed or stretched, The potential energy of the spring
Q81. A particles oscillating in simple harmonic motion is:
Q82. A Fire whistles emits a tone of 170 Hz Take the speed of sound in air to be 340m/s. The wavelength of this sound is about
Q83. How much pressure is exerted on a structure on a submarine at a depth of 8.50km in the Pacific Ocean? (The density of sea water=1.025 *103 kg/m3, and the atmospheric pressure at level=1.01*105 Pa).
Q84. One newton is a force that produces an acceleration of 0.5 m/s2 in a body of mass:
Q85. When breaks are applied to a fast moving car, the passenger will be throws:
Q86. In the formula F=Gm1m2/r2, the quantity G:
Q87. Per-second refers to the dimensions of physical quantity:
Q88. Light years is a unit of:
Q89. Young’s modules can be used to calculate the strain for a stress that is:
Q90. A wheel of radius 50 cm having the angular speed of 5 rad/s will have linear speed in m/s?
Q91. Objects moves in a circle at constant speed. The work done by the centripetal force is zero because:
Q92. A ball is thrown upward into the air with a speed that is greater than terminal speed. It lands at the place where it was thrown . During its flight the force of air resistance is the greatest.
Q93. A fire emits a tone of 170Hz Take the speed of sound in air to be 340m/s. The wavelength of this sound is about.
Q94. The angular momentum L of a rigid is given by:
Q95. A water bed that’s is 1.5m wide and 2.5m long weighs 1055N assuming the entire lower surface of the bed is in contact with the floor. What is the pressure the bed exerts on the floor?
Q96. A mosquito’s buzz is often rated with a decibel rating of 40 dm. Normal conversation is often rated at 60 db. How many times more intense is normal conversation compared to a mosquito’s buzz.
Q97. Which of the following statement/s is/ are true? 1) The weight of a man on the Moon is smaller than on the Earth 2) The mass of a man is the same on both the Moon and the Earth. 3) We cannot determine our own mass in the outer space because there is no gravity.
Q98. The angular momentum vector of Earth about its rotation axis, Due to its daily rotation, is directed:
Q99. When body moves with constant acceleration the velocity time graph is:
Q100. The persistence of audible sound due to the successive reflections from the surroundings objects even after the source has stopped to the produced that sound is called
Q101. A vector A is added to a vector B. The resultant vector A+B have greatest magnitude when
Q102. The unit of intensity of sound is:
Q103. When number of bodies are such that they can exert force upon one another and no external agency exerts a force on them, they are said to form:
Q104. Because a buoyant force acts in the opposite direction of gravity:
Q105. if the mass of moving objects is doubled then its K.E becomes:
Q106. accelation of an object must be zero at a point where.
Q107. back and forth in a leftward and rightward direction. This type of wave is known as a ___.
Q108. Final take off velocity of an airplane is 67 m/s. The length of runway is 2km, The constant acceleration is:
Q109. The frequency which is note audible to the human ear is:
Q110. The speed of sound is medium depends upon
Q111. If the body whose mass is much less than a body at rest collide with it elastically. Then it bounces back with:
Q112. SI Unit of time period is _____.
Q113. Which of the following is note a characteristics of mechanical waves?
Q114. Which of the following has the smallest moment of inertia about the central axis if all have equal masses and radii?
Q115. Which of the following cases is/are NOT a uniformly accelerated motion? 1) A feather falls from certain height inside a vacuum tube 2) A ball rolls along a frictionless plane at uniform speed 3) A coin falls from a certain height in air but air resistance is negligible
Q116. Before the density of an object can be found what two measurements are required?
Q117. Distance covered during one vibration of an oscillating body in terms of amplitude A:
Q118. Two seconds waves are travelling through a container of unknown gas. Wave A has a wavelength of 1.2m. Wave B has a wavelength of 3.6m. The frequency of wave B must be___ the frequency of wave A
Q119. Pre-second refers to the dimension of physical quantity:
Q120. The center of mass of Earth’s atmosphere is:
Showing the first 120 of 159 MCQs.