SHM 3

SHM 3

When a body oscillates with SHM, at any point along its path the total energy of the body is equal to the sum of the kinetic and potential energy of the body

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Multiple Choice

The correct displacement equation for this motion is:

• $y=A\cos\omega t$

• $y=A\sin\omega t$

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Multiple Select

An opera singer sings a high note and holds it for long enough that a crystal glass suddenly shatters.

Select all true statements.

• the damping was high

• the damping was low

• the sound vibrations matched the natural frequency of the crystal glass

• resonance of the crystal glass occurred

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Multiple Choice

A spring oscillates with an amplitude of 0.20 m and a period of 1.5 s. The total energy of the spring is 10 J. After 5 cycles of SHM the amplitude has reduced to 0.10 m. What is the period of oscillation after 5 cycles?

• 1.5 s

• 0.75 s

• 1.14 s

• 1.0 s

Multiple Choice

A spring oscillates with an amplitude of 0.20 m and a period of 1.5 m. The total energy of the spring is 10 J. After 5 cycles of SHM the amplitude has reduced to 0.10 m. What is the total energy of the spring after 5 cycles?

• 2.5 J

• 5.0 J

• 10 J

• 6.7 J