Physics MCQS

141. If a force acts on a body, whose action line does not pass through its centre of gravity then the body will experience:
A. Angular acceleration
B. Linear acceleration
C. No acceleration
D. None of these

142. The torque acting on a body is the rotational analogue of:
A. Mass of the body
B. Linear kinetic energy of the body
C. Linear velocity of the body
D. Force in linear motion

143. If solid sphere and solid cylinder of same mass and density rotate about their own axis, the moment of inertia will be greater for:
A. Solid sphere
B. Solid cylinder
C. Both
D. Equal Both

144. The angular momentum of a body is conserved if:
A. Force acting on it is zero
B. Force following up on it is zero
C. Force acting on it is constant
D. Torque acting on it is constant

145. When torque acting upon a system is zero Which of the following will be constant?
A. Force
B. Linear momentum
C. Linear impluse
D. None of these

146. A particle undergoes uniform circular motion about which point on the plane of the circle, will the angular momentum of the particle remain conserved?
A. Centre of the circle
B. On the circumference of the circle
C. Inside the circle
D. Outside the circle

147. Moment of inertia of an object does not depend upon:
A. Mass of object
B. Mass of distribution
C. Angular velocity
D. Axis of rotation

148. The work done will be zero when the angle between the force and the distance is?
A. 45 Degree
B. 60 Degree
C. 90 Degree
D. 180 Degree

149. Value of g increases with?
A. Increase in mass of body
B. Increase in Altitude
C. Decrease in Altitude
D. None of the above

150. A force of 10 N is making an angle of 30 Degree with horizontal. Its horizontal components will be?
A. 4 N
B. 5 N
C. 7 N
D. 8.7 N