MCQ FROM ROTATIONAL DYNAMICS
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The rotational motion is an example of which of the following types of motion?
a) Rectilinear motion
b) Curvilinear motion
c) Circular motion
d) None of the above
Answer: b) Curvilinear motion
The moment of inertia depends on which of the following factors?
a) Mass of the object
b) Distance from the axis of rotation
c) Shape of the object
d) All of the above
Answer: d) All of the above
Which of the following quantities remains constant in uniform circular motion?
a) Linear velocity
b) Angular velocity
c) Both linear and angular velocity
d) None of the above
Answer: b) Angular velocity
The torque acting on an object is equal to which of the following?
a) Force times displacement
b) Mass times acceleration
c) Moment of inertia times angular acceleration
d) None of the above
Answer: a) Force times displacement
A disc and a ring of same mass and radius are released from the same height on a slope. Which of the following will reach the bottom first?
a) Disc
b) Ring
c) Both will reach at the same time
d) It depends on the slope angle
Answer: c) Both will reach at the same time
Which of the following is true about the moment of inertia of a thin rod?
a) It depends on the length of the rod
b) It depends on the mass of the rod
c) It depends on the axis of rotation
d) It depends on the shape of the rod
Answer: a) It depends on the length of the rod
A force of 20 N is applied to a 5 kg object. What is the torque produced if the force acts perpendicular to the object at a distance of 2 m from the axis of rotation?
a) 10 Nm
b) 20 Nm
c) 40 Nm
d) 50 Nm
Answer: c) 40 Nm
The angular displacement of a rotating object is measured in which of the following units?
a) Radians
b) Degrees
c) Both radians and degrees
d) None of the above
Answer: a) Radians
The moment of inertia of an object rotating about an axis passing through its center of mass is called which of the following?
a) Polar moment of inertia
b) Transverse moment of inertia
c) Principal moment of inertia
d) None of the above
Answer: a) Polar moment of inertia
Which of the following is a unit of torque?
a) Newton
b) Joule
c) Watt
d) Newton-meter
Answer: d) Newton-meter
Which of the following is an example of rolling friction?
a) Friction between a car's tires and the road
b) Friction between a hockey puck and the ice
c) Friction between a book and a table
d) None of the above
Answer: b) Friction between a hockey puck and the ice
A solid sphere and a hollow sphere of same mass and radius are released from the same height on a slope. Which of the following will reach the bottom first?
a) Solid sphere
b) Hollow sphere
c) Both will reach at the same time
d) It depends on the slope angle
Answer: c) Both will reach at the same time
MCQ FROM PERIODIC MOTIONS
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Which of the following quantities remains constant in simple harmonic motion?
a) Amplitude
b) Frequency
c) Angular frequency
d) None of the above
Answer: a) Amplitude
The time period of a simple pendulum depends on which of the following factors?
a) Length of the pendulum
b) Mass of the pendulum bob
c) Amplitude of oscillation
d) All of the above
Answer: a) Length of the pendulum
The displacement of an object in simple harmonic motion can be represented by which of the following functions?
a) Sine function
b) Cosine function
c) Both sine and cosine functions
d) None of the above
Answer: c) Both sine and cosine functions
The restoring force in simple harmonic motion is proportional to which of the following?
a) Displacement from the equilibrium position
b) Velocity of the object
c) Acceleration of the object
d) None of the above
Answer: a) Displacement from the equilibrium position
The motion of a simple pendulum is an example of which of the following types of motion?
a) Linear motion
b) Circular motion
c) Oscillatory motion
d) None of the above
Answer: c) Oscillatory motion
The maximum displacement from the equilibrium position in simple harmonic motion is called which of the following?
a) Amplitude
b) Period
c) Frequency
d) None of the above
Answer: a) Amplitude
The angular frequency of a simple harmonic oscillator is given by which of the following equations?
a) ω = 2πf
b) ω = √(k/m)
c) ω = 2π/T
d) None of the above
Answer: b) ω = √(k/m)
The time period of a mass-spring system is given by which of the following equations?
a) T = 2πf
b) T = 2π√(m/k)
c) T = 2π/ω
d) None of the above
Answer: b) T = 2π√(m/k)
The motion of a guitar string is an example of which of the following types of motion?
a) Linear motion
b) Circular motion
c) Translational motion
d) None of the above
Answer: d) None of the above
The total energy of a simple harmonic oscillator is equal to which of the following?
a) Kinetic energy only
b) Potential energy only
c) Both kinetic and potential energy
d) None of the above
Answer: c) Both kinetic and potential energy
The motion of a mass-spring system is an example of which of the following types of motion?
a) Linear motion
b) Circular motion
c) Oscillatory motion
d) None of the above
Answer: c) Oscillatory motion
The frequency of a simple harmonic oscillator is given by which of the following equations?
a) f = 1/T
b) f = ω/2π
c) f = √(k/m)
d) None of the above
Answer: b) f = ω/2π
The time period of a mass-spring system depends on which of the following factors?
a) Mass of the object
b) Spring constant
c) Both mass of the object and spring constant
d) None of the above
MCQ FROM FLUID STATICS.
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Which of the following quantities is a scalar quantity in fluid statics?
a) Pressure
b) Velocity
c) Density
d) None of the above
Answer: a) Pressure
Which of the following equations represents Pascal's Law?
a) P = F/A
b) F = ma
c) P1V1 = P2V2
d) None of the above
Answer: a) P = F/A
Which of the following quantities does not affect pressure in a fluid?
a) Depth
b) Density
c) Acceleration due to gravity
d) Volume
Answer: d) Volume
The pressure exerted by a fluid at rest is transmitted equally in all directions. This statement is known as which of the following laws?
a) Boyle's Law
b) Archimedes' Principle
c) Pascal's Law
d) Bernoulli's Principle
Answer: c) Pascal's Law
The pressure at a point in a fluid depends on which of the following factors?
a) Depth
b) Density
c) Acceleration due to gravity
d) All of the above
Answer: d) All of the above
Which of the following factors affects the buoyant force experienced by an object submerged in a fluid?
a) Density of the object
b) Volume of the object
c) Density of the fluid
d) All of the above
Answer: d) All of the above
The buoyant force experienced by an object submerged in a fluid is equal to which of the following?
a) The weight of the object
b) The weight of the fluid displaced by the object
c) The volume of the object
d) None of the above
Answer: b) The weight of the fluid displaced by the object
Which of the following factors affects the pressure at a point in a fluid?
a) Density of the fluid
b) Acceleration due to gravity
c) Depth of the point
d) All of the above
Answer: d) All of the above
Which of the following quantities is a vector quantity in fluid statics?
a) Pressure
b) Velocity
c) Density
d) None of the above
Answer: b) Velocity
The pressure at a point in a fluid is given by which of the following equations?
a) P = F/A
b) P = ρgh
c) P1V1 = P2V2
d) None of the above
Answer: b) P = ρgh
The buoyant force experienced by an object submerged in a fluid is equal to which of the following?
a) The weight of the object
b) The weight of the fluid displaced by the object
c) The volume of the object
d) None of the above
Answer: b) The weight of the fluid displaced by the object
The pressure at a point in a fluid is affected by which of the following factors?
a) Depth
b) Density
c) Acceleration due to gravity
d) All of the above
Answer: d) All of the above
Which of the following statements is true regarding fluids at rest?
a) The pressure is constant throughout the fluid.
b) The velocity is constant throughout the fluid.
c) The density is constant throughout the fluid.
d) None of the above
Answer: a) The pressure is constant throughout the fluid.
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