Energy in SHM

IMPORTANT

Energy in SHM: Overview

This topic covers concepts such as Energy in SHM, Potential Energy in Terms of Displacement in SHM, Potential Energy in Terms of Time in SHM, Maximum Potential Energy in SHM, etc.

Important Questions on Energy in SHM

EASY
IMPORTANT

A particle of mass m oscillates in Simple Harmonic Motion between points x1 and x2, the equilibrium position being O. Which of the following graphs represents the variation of its potential energy U with respect to its position?

MEDIUM
IMPORTANT

A particle executing SHM with an amplitude A. The displacement of the particle when its potential energy is half of its total energy is

EASY
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If x is the displacement of the particle from the mean position, the total energy of a particle executing simple harmonic motion is

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The total energy of the particle executing Simple Harmonic Motion is 

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Graph of kinetic energy in terms of displacement in SHM :-

(i) At what displacement of particle executing SHM, has maximum kinetic energy.

Question Image

HARD
IMPORTANT

Which of the given is graph of the square of cosine function?

MEDIUM
IMPORTANT

A particle is executing simple harmonic motion with a time period T. At time t = 0, it is at its position of equilibrium. The kinetic energy - time graph of the particle will look like:

EASY
IMPORTANT

The kinetic energy of a particle executing S.H.M. is 16 J when it is at its mean position. If the amplitude of oscillations is 25 cm, and the mass of the particle is 5.12 kg, then the time period of the oscillation is

MEDIUM
IMPORTANT

Which of the following is correct about Simple Harmonic Motion (SHM) along a straight line?

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For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly?
(graphs are schematic and not drawn to scale)

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A point particle is acted upon by a restoring force -kx3. The time period of oscillation is T when the amplitude is A. The time period for an amplitude 2A will be:

EASY
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The ratio of kinetic energy at a mean position to potential energy at A2 of a particle performing SHM is

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U is the potential energy of an oscillating(SHM) particle and F is the force acting on it at a given instant. Which of the following is correct?

(Given x is displacement of the particle)

MEDIUM
IMPORTANT

A particle of mass m oscillates with simple harmonic motion between points x1 and x2, the equilibrium position being at O. Its potential energy is plotted. It will be as given below in the graph,

EASY
IMPORTANT

A block of mass 1 kg tied to a long spring of spring constant 100 N m-1 is at rest on a horizontal frictionless surface. The block is pulled through a distance 5 cm from its equilibrium position and released. Then the total energy of the block when it is at a distance 4 cm from the equilibrium position is

MEDIUM
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The potential energy of a simple harmonic oscillator of mass 2 kg at its mean position is 5 J. If its total energy is 9 J and amplitude is 1 cm, then its time period is

EASY
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The KE and PE of a particle executing simple harmonic motion with amplitude A has ratio 2:1, then its displacement is,

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At what time PE will be equal to half of the total energy TE in SHM of time period T.

MEDIUM
IMPORTANT

A simple pendulum of length L has mass M and it oscillates freely with amplitude A. At extreme position, its potential energy is (g= acceleration due to gravity)

HARD
IMPORTANT

Obtain an expression for potential energy of a particle performing S.H.M. What is the value of potential energy at
(i) mean position
(ii) extreme position?