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WorksheetsOscillations
Total questions: 37
Worksheet time: 29mins
Which row in the table correctly shows the kinetic energy Ek of the mass at maximum displacement and the potential energy Ep of the mass at the equilibrium position?
Which would have the longest period?
Pendulum A: A 200-g mass attached to a 1.0-m length string
Pendulum B: A 400-g mass attached to a 0.5-m length string
A
B
Same
In any system in simple harmonic motion, the restoring force acting on
the mass in the system is proportional to
displacement.
the length of a pendulum
the mass
frequency.
In an oscillating mass-spring system, the velocity of the mass is greatest when the mass is
at the point of maximum displacement
halfway between the equilibrium point and maximum displacement
at the point where acceleration is greatest.
at the equilibrium point
The period of a pendulum may be decreased by
shortening its length.
increasing the mass of the bob
moving its equilibrium point
decreasing the mass of the bob
As the swinging bob of a pendulum moves farther from its equilibrium
position, the pendulum’s _______________ increases
frequency
mass
restoring force
length
The gravitational potential energy of the bob of a swinging pendulum is
at its maximum when the bob is at
maximum displacement
the equilibrium point
the center of its swing
minimum displacement
Stretching a spring increases its ______________ energy
mechanical kinetic
gravitational potential
vibrational kinetic
elastic potential
Based on your findings, which equation could best describe the pendulum’s period?
A
B
C
D
Which of the following is/ are characteristics of simple harmonic motion?
I. The acceleration is constant .
II. The restoring force is proportional to the displacement.
III. The frequency is independent of the amplitude.
II only
I and II only
I and III only
II and III only
I, II, and III
Define amplitude.
maximum displacement from equlibrium position
total displacement
maximum distance from where the object is released
what is the gradient of the acceleration-displacement graph represent?
frequency
angular displacement
angular velocity
square of angular frequency
Which row, A to D, in the table would give a simple pendulum with a time period twice that of the spring oscillations?
Which row in the table correctly shows the kinetic energy Ek of the mass at maximum displacement and the potential energy Ep of the mass at the equilibrium position?
What is the effect of damping on resonance?
decrease slightly the value of proper frequency.
reduce the maximum amplitude of an oscillator.
The shape of the curve of resonance becomes broad.
All
The curve of high damping is
1
2
3
no one
An oscillator is said to be driven if a device allows, at regular intervals of time, to communicate energy to the oscillator to compensate losses due to friction.
False
true
The curve that represents the free undamped oscillations is
In free damped mechanical oscillations:
The object oscillates with a decreasing amplitude.
The object oscillates with a period called the pseudo-period T.
The pseudo-period T is slightly greater than the proper period T0 .
All
