This is the Multiples Choice Questions Part 2 of the Series in Physics as one of the General Engineering and Applied Sciences (GEAS) topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including past Board Questions in General Engineering and Applied Sciences (GEAS), Physics Books, Journals and other Physics References.
Online Questions and Answers in Physics Series
Following is the list of multiple choice questions in this brand new series:
Continue Practice Exam Test Questions Part II of the Series
Choose the letter of the best answer in each questions.
51. Which is NOT a vector quantity?
- A. Displacement
- B. Velocity
- C. Acceleration
- D. Time
52. Which is NOT a fundamental physical quantity of mechanics?
- A. Length
- B. Mass
- C. Volume
- D. Time
53. What is an arrowed line whose length is proportional to the magnitude of some vector quantity and whose direction is that of the quantity?
- A. Vector diagram
- B. Vector
- C. Component
- D. Resultant
54. What is scaled drawing of the various forces, velocities or other vector quantities involved in the motion of a body?
- A. Vector diagram
- B. Vector
- C. Component
- D. Resultant
55. The _______ of a moving object is the distance it covers in a time interval divided by the time interval.
- A. acceleration
- B. instantaneous speed
- C. average speed
- D. instantaneous velocity
56. The rate at which velocity changes with time is known as ________.
- A. acceleration
- B. instantaneous speed
- C. average speed
- D. instantaneous velocity
57. “The work done by the net force on a particle equals the change in the particle’s kinetic energy.” This statement is known as _________.
- A. Law of conservation of energy
- B. Work-energy theorem
- C. Law of conservation of work
- D. Total work theorem
58. The ________ of a particle is equal to the total work that particle can do in the process of being brought to rest.
- A. kinetic energy
- B. potential energy
- C. total energy
- D. mechanical energy
59. Work is defined as the product of:
- A. Force and displacement
- B. Force and time
- C. Displacement and time
- D. Power and time
60. What is defined as the time rate at which work is done?
- A. impulse
- B. Momentum
- C. Power
- D. Energy
61. What is defined as any influence that can change the velocity of an object?
- A. Impulse
- B. Force
- C. Energy
- D. Work
62. What is a measure of the inertia of an object?
- A. Density
- B. Weight
- C. Mass
- D. Force
63. What is the property of matter which is the reluctance to change its state of rest or of uniform motion?
- A. Impulse
- B. Momentum
- C. Inertia
- D. Equilibrium
64. “If no net force acts on it, an object at rest will remain at rest and an object in motion will remain in motion at constant velocity”. This statement is the _______.
- A. first law of motion
- B. second law of motion
- C. third law of motion
- D. d’Alembert’s principle
65. “The net force acting on an object equals the product of the mass and the acceleration of the object. The direction of the force is the same as that of the acceleration”. This statement is the _______.
- A. first law of motion
- B. second law of motion
- C. third law of motion
- D. d’ Alembert’s principle
66. “When an object exerts a force on another object, the second object exerts on the first a force of the same magnitude but in the opposite direction”. This statement is the _____.
- A. first law of motion
- B. second law of motion
- C. third law of motion
- D. d’Alembert’s principle
67. What refers to the force with which the earth attracts an object?
- A. Gravitational pull
- B. Mass
- C. Weight
- D. All of the above
68. How many kilograms are there in 1 slug?
- A. 11.9
- B. 12.5
- C. 13.2
- D. D.14.6
69. What refers to an actual force that arises to oppose relative motion between contracting surfaces?
- A. Action force
- B. Reaction force
- C. Friction
- D. Drag
70. What refers to the force between two stationary surfaces in contact that prevents motion between them?
- A. kinetic friction
- B. sliding friction
- C. starting friction
- D. static friction
71. What is the maximum value of the static friction?
- A. Starting friction
- B. Sliding friction
- C. Kinetic friction
- D. Dynamic friction
72. What is TRUE between kinetic friction and static friction?
- A. Kinetic friction is always to static friction
- B. Kinetic friction is always less than static friction
- C. Kinetic friction is always greater than static friction
- D. Kinetic friction is equal to or greater than static friction
73. What is another term for kinetic friction?
- A. Dynamic friction
- B. Starting friction
- C. Sliding friction
- D. All of the above
74. For the same materials in contact, what is TRUE between coefficient of static friction and coefficient of kinetic friction?
- A. Coefficient of static friction is always less than the coefficient of kinetic friction
- B. Coefficient of static friction is always equal to the coefficient of kinetic friction
- C. Coefficient of static friction is always greater than the coefficient of kinetic friction.
- D. Coefficient of static friction may be greater than or less than the coefficient of kinetic friction.
75. Efficiency of a machine is the ratio of:
- A. power output to power input
- B. power input to power output
- C. total work done to total energy
- D. total energy to total power
76. What is the energy something possesses by virtue of its motion?
- A. Kinetic energy
- B. Potential energy
- C. Rest energy
- D. Mechanical energy
77. What is the energy something possesses by virtue of its mass?
- A. Kinetic energy
- B. Potential energy
- C. Rest energy
- D. Mechanical energy
78. What is the energy something possesses by virtue of its position?
- A. Kinetic energy
- B. Potential energy
- C. Rest energy
- D. Mechanical energy
79. When the vector sum of the external forces acting on the system of particles equals zero, the total linear momentum of the system __________.
- A. becomes zero
- B. maximizes
- C. changes abruptly
- D. remains constant
80. What is conserved in an elastic collision?
- A. Kinetic energy
- B. Potential energy
- C. Rest energy
- D. Mechanical energy
81. In elastic collision, kinetic energy is conserved. This statement is:
- A. true
- B. false
- C. is either true or false, depending upon the colliding bodies
- D. is either true or false, depending on the impact of two colliding bodies
82. When can we say that a collision is a completely inelastic collision?
- A. When the kinetic energy lost is minimum.
- B. When the kinetic energy is conserved.
- C. When the two colliding objects stick together after impact.
- D. When the two colliding objects will separate after impact.
83. What will happen to the kinetic energy if it is a completely inelastic collision?
- A. It is conserved.
- B. It is lost to maximum value.
- C. It is gained from the loss of potential energy.
- D. It is lost to minimum value.
84. Coefficient of restitution is the ratio of:
- A. relative speed after collision to relative speed before collision
- B. relative speed before collision to relative speed after collision
- C. relative speed to absolute speed
- D. absolute speed to relative speed
85. What is the coefficient of restitution for a perfectly elastic collision?
- A. 0
- B. 1
- C. Less than 1
- D. Greater than 1
86. What is the coefficient of restitution for a perfectly inelastic collision?
- A. 0
- B. 1
- C. Less than 1
- D. Greater than 1
87. The coefficient of restitution always applies _______.
- A. to only one of the colliding objects
- B. to neither of the colliding objects
- C. jointly to the colliding objects
- D. to the bigger colliding object
88. “When the vector sum of the external forces acting on a system of particles equals zero, the total linear momentum of the system remaining constant.” This statement is known as:
- A. Law of universal gravitation
- B. Law of conservation of impulse
- C. Law of conservation of momentum
- D. Law of conservation of energy
89. What refers to the product of the force and the time during which a force acts?
- A. Impulse
- B. Momentum
- C. Power
- D. Energy
90. Momentum is the product of:
- A. mass and time
- B. velocity and mass
- C. force and time
- D. force and mass
91. The coefficient of restitution always applies _________.
- A. to only one of the colliding objects
- B. to neither of the colliding
- C. jointly to the colliding objects
- D. to the bigger colliding object
92. What refers to the force perpendicular to the velocity of an object moving along a curve path?
- A. Centrifugal force
- B. Centripetal force
- C. Reverse-effective force
- D. Gravitational force
93. The centripetal force is:
- A. directed away from the center of the curvature of the path
- B. directed toward the center of curvature of the path
- C. tangent to the curvature of the path
- D. either directed away or toward the center of curvature of the path
94. What refers to the time needed by an object in uniform circular motion to complete an orbit?
- A. path time
- B. orbit time
- C. revolution
- D. period
95. The centripetal acceleration of a particle in uniform motion is _______ to the radius of its path.
- A. directly proportional
- B. inversely proportional
- C. equal
- D. not related in any way
96. Gravitation occurs between all objects in the universe by virtue of their ________.
- A. mass
- B. density
- C. weight
- D. volume
97. “Every object in the universe attracts every other object with a force directly proportional to the product of their masses and inversely proportional to the square of the distance separating them”. This statement is known as:
- A. Law of conservation of energy
- B. Law of universal gravitation
- C. Law of conservation of momentum
- D. Law of conservation of impulse
98. The gravitational force of the earth on an object varies of the ______ the distance of the object from the center of the earth.
- A. inversely as
- B. inversely as the square of
- C. directly as
- D. directly as the square of
99. A rotating body has kinetic energy. This statement is ________.
- A. sometimes true
- B. sometimes false
- C. always true
- D. always false
100. What type of energy is usually transmitted by rotary motion?
- A. Kinetic energy
- B. Potential energy
- C. Mechanical energy
- D. Rest energy
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