Simple pendulum
Theory
Procedure
Animation
Simulator
Viva Voce
Resources
1)
The pendulum, in a wall clock, is a 'seconds pendulum', i.e., has a time period of 2s. The 'effective length' of a simple pendulum, that has the same time period, is nearly :
100 cm
200 cm
150 cm
50 cm
2)
A student measures the time period (T) of a simple pendulum for different values of its length (L). The student would get a straight line by plotting a graph between :
'√L' and 'T' values
√L and √T values
'L' and 'T' values
L and √T values
3)
Two pendulums of the same length are set up. If one bob is heavier than the other, what is the period of oscillation of the pendulum of the heavier bob?
Greater than the lighter bob.
Remains the same.
Greater and same as the lighter bob.
Lesser than the lighter bob.
4)
For a simple pendulum, the graph between l and T will be?
Hyperbola
Parabola
Curve
Straight line
5)
The opposition to free vibrations of bob of a simple pendulum due to presence of air around is called?
Amplitude
Wavelength
Damping
Frequency
6)
The number of oscillations completed by simple pendulum in one second is called?
Amplitude
Frequency
Wavelength
Time period
7)
What is the maximum displacement of the bob from its mean position to its extreme position called?
Time period
Wave length
Frequency
Amplitude
8)
If both the mass m of a simple pendulum and its length L are doubled, the period will
increase by a factor of 0.71.
increase by a factor of 2.
increase by a factor of 1.4
be unchanged.
9)
When the length of a simple pendulum is decreased by 600 mm, the period of oscillation is halved. What was the original length of the pendulum?
1000 mm
800 mm
1400 mm
1200 mm
10)
The time period of a pendulum on Earth is 1.0 s. What would be the period of a pendulum of the same length on a planet with half the density but twice the radius of Earth?
1.4 s
2.0 s
1.0 s
0.5 s
11)
A particle oscillates with undamped simple harmonic motion. Which one of the following statements about the acceleration of the oscillating particle is true?
It is always in the opposite direction to its velocity.
It is proportional to the frequency.
It decreases as the potential energy increases.
It is least when the speed is greatest.
12)
The decrease of amplitude of free vibrations of a simple pendulum due to presence of air around is called?
Wavelength
Frequency
Damping
Time Period
