1. Two equal and opposite forces acting at a point are in equilibrium.   True   False   2. A force of 6 N acts on a small body pushing it vertically upwards. Simultaneously, another force of 9 N acts on it pushing it vertically downwards. The resultant of the two forces is _______.   15 N downwards   3 N upwards   3 N downwards   15 N upwards   Hint Half-n-half Clue   3. The center of gravity of a body is the point about which all the clockwise moments equal all the anticlockwise moments.   True   False   4. A chalkstick that is balanced upright on a table is in _______ equilibrium.   neutral   stable   unstable   Half-n-half Clue   5. The resultant of two forces acting at a point can be determined by using the 'Parallelogram of Forces'.   True   False   6. Two forces acting at right angles, which have the same effect as a single force, are called _______.   resultants   components   constituents   Half-n-half Clue   7. The moment of a force is inversely proportional to the turning effect of the force.   True   False