1
1 mark
1 markA pendulum of length l with a bob of mass m oscillates with frequency f.
What is the frequency of a pendulum of length 4l with a bob of mass 2m?
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Simple Harmonic Motion
21 mark
1 markA mass is suspended from a spring and allowed to come to equilibrium.
The mass is displaced vertically and moves with simple harmonic motion.
The graph shows how the resultant force on the mass varies with time.
Which of the following graphs shows how the velocity v of the mass varies with time t over the same time interval?
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31 mark
1 markThe graph shows how the displacement of a simple harmonic oscillator varies with time.
Which of the following graphs shows how velocity varies with time for the same oscillator, over the same time period?
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41 mark
1 mark A mass at the end of a spring is set into small amplitude simple harmonic motion.
Which of the following graphs correctly shows the variation of velocity 
of the mass with displacement 
for one complete oscillation?
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