Q.1
What is the frequency of a simple pendulum if the time period is ten seconds?
  • 0.01 Hz
  • 0.1 Hz
  • 1 Hz
  • 10 Hz
Q.2
What is the formula for the period of oscillation for a simple pendulum?
  • T = 2f
  • T = 3f
  • T = 4f
  • T = 1⁄f
Q.3
Where is the centre of mass located on a rectangle of length 5 cm and width 3 cm if the mass is distributed evenly throughout the object?
  • (1.5,2.5)
  • (3,5)
  • (2.5,1.5)
  • (5,3)
Q.4
What is centre of mass?
  • It is the point at which the mass of an object may be thought to be concentrated
  • The point at which an object has no mass
  • A number of points across an object which measure the same mass
  • None of the above
Q.5
A freely suspended object will come to rest with its centre of mass directly below which point?
  • Point of recession
  • Point of suspension
  • The centre of mass doesn't lie directly below any point
  • None of the above
Q.6
What does the time period depend on?
  • Force with which the pendulum is released
  • Width of string used in the pendulum
  • Length of the pendulum
  • All pendulums have the same time period
Q.7
What is the time period if the frequency is 100 Hz?
  • 1 s
  • 0.1 s
  • 0.01 s
  • 0.001 s
Q.8
A simple pendulum oscillates 50 times per second. What is the frequency of the pendulum?
  • 25 Hz
  • 50 Hz
  • 75 Hz
  • 100 Hz
Q.9
How can you locate the centre of mass of an irregular object?
  • Suspend the object from two locations and drop a plumb line from the suspension points
  • Suspend the object from one location and drop a plumb line from the suspension point
  • Measure to the centre of the object
  • None of the above
Q.10
Where is the centre of mass located in a regularly shaped object?
  • Along an axis of symmetry
  • Always in the centre of the object
  • Always 2cm to the left of the centre
  • Always 2cm to the right of the centre
0 h : 0 m : 1 s