Q.1
What is the turning effect of forces?
  • A moment
  • A while
  • An hour
  • A day
Q.2
What is the formula for a moment?
  • Moment = F x d
  • F = M x d
  • d = F x M
  • Moment = 2F x d
Q.3
In the above equation, what does represent?
  • Distance of a beam
  • Distance from the line of action of the force to another force
  • Distance from the line of action of the force to the pivot
  • Distance to the pivot from the line of action of the force and back again
Q.4
What is a moment measured in?
  • N
  • m
  • N m
  • N/m
Q.5
What is the center of mass of an object?
  • It is a point on the object where the whole weight of the object seems to act
  • It is the central point of an object
  • It is a point just above the top of an object
  • The center of mass of an object is never found at a point on an object
Q.6
What is stability?
  • The ability of an object to maintain its original position
  • An object which will oscillate around a point after being displaced but will never come to rest
  • An object which continues to move away from its position after being displaced
  • None of the above
Q.7
Which statement is true for a body in stable equilibrium?
  • It continues to move away from its original position after being displaced
  • It returns to its original position after being displaced slightly
  • Both of the above
  • Neither of the above
Q.8
Which statement is true for a body in unstable equilibrium?
  • It returns to its original position after being displaced slightly
  • It continues to move away from its original position after being displaced
  • Both of the above
  • Neither of the above
Q.9
How can the stability of an object be increased?
  • Lower its center of mass
  • Increase the area of its base
  • Both of the above
  • Neither of the above
Q.10
If the total clockwise moment around a pivot is 10 N m and the total moment about a pivot is zero, what is the size of the counterclockwise moment?
  • 1 N m
  • 5 N m
  • 10 N m
  • 20 N m
0 h : 0 m : 1 s