Important Questions on Measurement and Motion
What is curvilinear motion? 
What is oscillatory motion? Give any two examples? Give two examples each of rolling motion and rectilinear motion? What points must you keep in mind while measuring the length of an object? While measuring the length of a pen, the reading of the scale at one end is , and that at the other end is. What is the length of the pen? Why don't we measure all lengths using standard unit - , instead of measuring them using , , , etc.? Describe the method of measuring the length of a curved line with the help of a divider? How will you measure the diameter of a cricket ball? 
