question_answer1) Can a motion be periodic and not oscillatory?
question_answer5) What is the basic condition for the motion of a particle to be S.H.M.?
question_answer9) When are the displacement and velocity in the same direction in S.H.M.?
question_answer10) When are the velocity and acceleration in the same direction in S.H.M.?
question_answer11) Can displacement and acceleration be in the same direction in S.H.M.?
question_answer20) Can we use a pendulum watch in an artificial satellite?
question_answer22) Will a pendulum clock lose or gain time when taken to the top of a mountain?
question_answer37) Why is restoring force necessary for a body to execute S.H.M.?
question_answer39) What determines the natural frequency of a body?
question_answer40) Why does the amplitude of an oscillating pendulum go on decreasing?
question_answer41) Why are army troops not allowed to march in steps while crossing a bridge?
question_answer42) A passing aeroplane sometimes causes the rattling of the windows of a house. Why?
question_answer43) How can earthquakes cause disaster sometimes?
question_answer45) Glass windows may be broken by a far away explosion. Explain why.
question_answer47) What will be the change in time period of a loaded spring, when taken to moon?
question_answer54) What is meant by restoring force? Give one example.
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