1. The center of gravity of a body is the point about which all the clockwise moments equal all the anticlockwise moments.   True   False   2. The SI unit of moment is   N/m   N/m2   N m   Hint Half-n-half Clue   3. A pendulum at rest is in _______ equilibrium.   stable   neutral   unstable   Half-n-half Clue   4. Two forces acting at right angles, which have the same effect as a single force, are called _______.   components   resultants   constituents   Half-n-half Clue   5. The moment of a force is inversely proportional to the turning effect of the force.   True   False   6. If a walking stick with a mass of 300 g can be balanced by placing a mass M of 120 g at a distance L of 20 cm from the fulcrum, then the center of gravity of the stick is _______ cm away from the fulcrum.   8   60   4   40   Half-n-half Clue   7. A mass of 70 g is attached at one end of a rod, and a mass of 30 g is attached at the other end. If the length of the rod is  60 cm, then the fulcrum should be placed _______ cm away from the 70 g mass for the rod to balance.   24   42   36   18   Half-n-half Clue