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16.3 Simple Harmonic Motion: A Special Periodic Motion

Oscillation under a Hooke's-law restoring force, its sinusoidal position graph, and a period fixed by mass and stiffness rather than amplitude.

College Physics 2e, 16.3 Simple Harmonic Motion: A Special Periodic Motion

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7 exercises

16.3 Exercise 1

The most important point here is that these equations are mathematically straightforward and are valid for all simple harmonic motion. They are very useful in visualizing waves associated with simple harmonic motion, including visualizing how waves add with one another.

Suppose you pluck a banjo string. You hear a single note that starts out loud and slowly quiets over time. Describe what happens…

2.5

16.3 Exercise 2

The most important point here is that these equations are mathematically straightforward and are valid for all simple harmonic motion. They are very useful in visualizing waves associated with simple harmonic motion, including visualizing how waves add with one another.

A babysitter is pushing a child on a swing. At the point where the swing reaches XX, where would the corresponding point on a wave…

2.5

16.3 Exercise 4

A particle of mass 100 g undergoes a simple harmonic motion. The restoring force is provided by a spring with a spring constant of 40 N∙m−1. What is the period of oscillation?

  1. 10π
  2. 0.5π
  3. 0.1π
  4. 1π
2.5

16.3 Exercise 6

A pendulum of mass 200 g undergoes simple harmonic motion when acted upon by a force of 15 N. The pendulum crosses the point of equilibrium at a speed of 5 m∙s−1. What is the energy of the pendulum at the center of the oscillation?

2.5

16.3 Exercise 13

A type of cuckoo clock keeps time by having a mass bouncing on a spring, usually something cute like a cherub in a chair. What force constant is needed to produce a period of 0.500 s for a 0.0150-kg mass?

2.5

16.3 Exercise 15

A 0.500-kg mass suspended from a spring oscillates with a period of 1.50 s. How much mass must be added to the object to change the period to 2.00 s?

2.5

16.3 Exercise 18

A diver on a diving board is undergoing simple harmonic motion. Her mass is 55.0 kg and the period of her motion is 0.800 s. The next diver is a male whose period of simple harmonic oscillation is 1.05 s. What is his mass if the mass of the board is negligible?

2.5

Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.