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

Multiple Choice

The correct displacement equation for this motion is:

• $y=A\cos\omega t$

• $y=A\sin\omega t$

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

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