If in case of a motion, displacement is directly proportional to the square of time elapsed, what do you think about its acceleration i.e., constant or variable? Explain why?

The length covered by a body is found to be directly proportional to square of time. What is the nature of acceleration?

The following is the distance-time table of an object in motion: What do you infer about the forces acting on the object?

The following is the distance-time table of an object in motion: What conclusion can you draw about the acceleration? Is ti constant, increasing, decreasing, or zero?

Some of the most profound statements on the nature of science have come from Albert Einstein, one of the greatest scientist of all times. What do you think did Einstein mean when he said “The most incomprehensible thing about the world is that it is comprehensible”.

Debate the following issue in class. the estimated coal reserves are said to be enough to last us for another two hundred years. Do you think we need to worry about coal getting depleted in this case ? Why or why not ?

What can you say about the motion of an object if its speed time graph is a straight line parallel to the time axis?

A body is moving unidirectionally under the influence of a source of constant power. Its displacement in time t is proportional to(i)t(1)/2(ii)t(iii)t(3)/2(iv) t^2

Do you think the reverse is also true, I,e., is thesum of any two consecutive positive integers is perfect square of a number? Give example to support you answer.

A body is initially at rest. It Undergoes one-dimensional motion with constant acceleration. The power delivered to it at time t is proportional to(i)t(1)/2 (ii)t(iii)t(2)/3(iv) t^2