Physics Measurements and Experimentation Exercise1c
Please Select
Q1 What is a simple pendulum? Is the pendulum used in a pendulum clock simple pendulum? Give reason to your answer.
Q2 Define the terms: (i) oscillation, (ii) amplitude (iii) frequency (iv) time period as related to a simple pendulum
Q3 Draw a neat diagram of a simple pendulum. Show on it the effective length of the pendulum and its one oscillation.
Q4 Name two factors on which the time period of a simple pendulum depends. Write the relation for the time period in terms of the above named factors.
Q5 Name two factors on which the time period of a simple pendulum does not spend.
Q6 How is the time period of a simple pendulum affected, if at all, in the following situations:
(a) The length is made four times,
(b) The acceleration due to gravity is reduced to one-fourth.
Q7 How are the time period T and frequency f of an oscillation of a simple pendulum related?
Q8 How do you measure the time period of a given pendulum? Why do you note the time for more than one oscillation?
Q9 How does the time period (T) of a simple pendulum depend on its length (l)? Draw a graph showing the variation of T2 with l. How will you use this graph to determine the value of g (acceleration due to gravity)?
Q10 Two simple pendulum A and B have equal lengths, but heir bobs weigh 50 gf and 100 gf respectively. What would be the ratio of their time periods? Give reason for your answer.
Q11 Two simple pendulums A and B have lengths 1.0m and 4.0m respectively at a certain place. Which pendulum will make more oscillations in 1 minute? Explain your answer.
Q12 State how does the time period of a simple pendulum depend on (a) length of pendulum, (b) mass of bob, (c) amplitude of oscillation and (d) acceleration due to gravity.
Q13 What is a seconds’ pendulum?
Q14 State the numerical value of the frequency of oscillation of a seconds’ pendulum. Does it depend on the amplitude of oscillation?
Multiple Choice type Questions :
Q1 The length of a simple pendulum is made one-fourth. Its time period becomes:
(a) Four times
(b) One-fourth
(c) Double
(d) Half
Q2 The time period of a pendulum clock is:
(a) 1s
(b) 2s
(c) 1 min
(d) 12h
Q3 The length of a seconds’ pendulum is nearly:
(a) 0.5m
(b) 9.8m
(c) 1.0m
(d) 2.0m
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