Oscillations

Question: Define Oscillatory motion and the terms associated with oscillation.

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Example 10.1: What is the frequency of oscillation if the time period is 20 ms?

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Assignment 10.1: When an object oscillates with a frequency of 0.5 Hz, what is its time period?

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Simple Harmonic Motion

Question: What is simple harmonic motion? Explain the conditions necessary for a body to oscillate with SHM.

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SHM … Mass-spring system

Question: What is spring-mass system in Physics? Show that a mass attached to a spring executes SHM.

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Question: Derive expressions for the time period and frequency of mass-spring system.

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Example 10.2: A spring has a spring constant 48.0 N/m. This spring is pulled to a distance of 55 cm from equilibrium. What is the restoring force?

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Assignment 10.2: Determine the restoring force of a spring displaced 1.5 m with the spring constant of 30.0 N/m.

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Example 10.3: What is the mass of a vertical mass-spring system if it oscillates with a period of 2.0 s and has spring constant of 20.0 N/m.

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Asignment 10.3:A body of mass 0.2 kg is attached to a spring placed on a frictionless horizontal surface. The spring constant of the spring is 4 N/m. Find the time period of the oscillating mass-spring system.
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SHM …Simple Pendulum

Question: What is simple pendulum? Diagramically show the forces acting on a simple pendulum. Show that a simple pendulum executes Simple Harmonic Motion.

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Question: Derive expressions for the time period and frequency of a simple pendulum.

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Example 10.4: Determine the magnitude of the restoring force for a pendulum bob of mass 100.0 g that has been pulled to an angle of 10° from the vertical.

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Asshignment 10.4: At what angle must the pendulum be displaced to create a restoring force of 4.00 N on a bob with a mass of 500.0 g?
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Example 10.5: What is the gravitational field strength at planet Mercury, if a 0.500 m pendulum swings with a period of 2.30 s?

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Assignment 10.5: What is the gravitational field strength at the top of Mount Everest at an altitude of 8954.0 m, if a pendulum with a length of 1.00 m has a period of 2.01 s?
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Damping

Question:What is damping?

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Nature of waves and their types

Questions: What is wave motion? How waves can be categorized?

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Question: Write few characteristics which describe a wave?

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Question:Prove the relation between wave speed, wavelength and frequency of wave. OR Explain the universal wave equation?

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Comprehensive Question 5: How waves transport energy without carrying the material medium? Also describe the connection between oscillatory motion and wave.

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Comprehensive Question 7: Using ripple tank, explain reflection, refraction and diffraction of waves.

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