Oscillations of a Simple Pendulum

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Question 3
A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?

Q.

Define 1 second.

Q.

An oscillatory motion is always periodic but a periodic motion is not always oscillatory. Give an example to support the statement.

Q. What is the difference between time period and frequency of a simple pendulum ?

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Question 6

The time period of a simple pendulum is the time taken by it to travel from

(a) A to B and back to A

(b) O to A, A to B and B to A

(c) B to A, A to B and B to O

(d) A to B

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Question 7

Figure shows an oscillating pendulum.

Time taken by the bob to move from A to C is $t_1$ and from C to O is $t_2$ . The time period of this simple pendulum is

(a) $(t_1+t_2)$

(b) $2(t_1+t_2)$

(c) $3(t_1+t_2)$

(d) $4(t_1+t_2)$

Q.

Define the term amplitude of a simple pendulum.

Q.

Why does a pendulum eventually stop swinging?

Q.

An object moves to-and-fro about its position of rest. What type of motion is this?

Q. The time period of a simple pendulum can be changed by changing:

1. Mass of the bob
2. Length of the string
3. Quality of the thread/string
4. Density of the bob

Q. What is simple pendulum?

Q. What is a simple pendulum? Is the simple pendulum used in a pendulum clock? Give reason to your answer.

Q.

Motion of a pendulum clock is a periodic motion.

1. True
2. False

Q. A simple pendulum consists of a light string from which a spherical Bob of mass M is suspended. The distance between the point of suspension and centre of the bob is l. The bob is given a tangential velocity v at a equilibrium position (i.e.at the lowest point). What can be the maximum value of velocity v, so that the pendulum oscillates without the string becoming slack ?

Q. What should be the weight of the Bob in pendulum to complete one oscillation in one minute?

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What do u understand by the term Time ? State its SI unit

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Consider that the bob of a simple pendulum has moved from its mean position to one of its extreme positions and then again to mean position from where it moved to the other extreme position and then back to the mean position. The bob of the simple pendulum has now completed:

1. Two oscillations

2. Half oscillation

3. One oscillation

4. Zero oscillations

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Question 2 (iv)
Which of the following are not correct?
(iv) The time period of a given pendulum is not constant.

Q. How do you measure the time period of a given pendulum? Why do you note the time for more than one oscillation ?

Q.

What is time?

Q. If the time taken by the bob to move from A to C is 0.4 seconds and from C to O is 0.6 seconds, the time period of this simple pendulum is:( ‘A’ and ‘B’ are the extreme positions and ‘O’ is the mean position of
the pendulum.)

1. 
   2 seconds
2. 
   3 seconds
3. 
   1 second
4. 
   4 seconds

Q. A simple pendulum takes 5 s to complete 12 oscillations. The time period is s.

Q.

Time is defined as that

1. duration in which something happens

2. instant when something happen

3. any of (a) and (b)

4. none of these

Q. A pendulum starts from B. After three and a half oscillations it will be at:

1. A
2. B
3. C
4. The position cannot be determined.

Q.

The time period of a simple pendulum can be changed by:

1. length of the string

2. mass of the bob

3. quality of string or thread

4. changing the gravity of the planet

Q. How much time does the bob of a seconds pendulum take to move from one extreme to the other extreme of its oscillation ?

Q.

If the time taken by the bob from O to B is T , then what will be the time taken by the bob to go from A to B?
Assume O to be the mean position and A and B are the extreme positions on either end.

1. T

2. 4T

3. 2T

4. $\frac{T}{2}$

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Question 10

A simple pendulum is oscillating between two points A and B as shown in Figure. Is the motion of the bob uniform or non - uniform?

Q. In the figure given below, the time taken by the bob to reach from point O to B is T.

The total distance covered by the pendulum and the time taken to complete one oscillation is:

1. x, T
2. 2x, 4T
3. 4x, 4T
4. 8x, 6T

Q. Can a pendulum clock be used in an earth-satellite?