Waves, Sound and Light: Sound and Music

Sound and Music: Audio Guided Solutions

Problem 13:

During the Pluck It! Lab, lab partners Anna Litical and Noah Formula determined the speed of vibrations through a 2.45-meter length of wire. The wire had a mass of 19.5 grams. If the speed was measured to be 253 m/s, determine the tension to which it was pulled.

Audio Guided Solution

Habits of an Effective Problem Solver

  • Read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
  • Identify the known and unknown quantities and record in an organized manner, often times they can be recorded on the diagram itself. Equate given values to the symbols used to represent the corresponding quantity (e.g., v = 345 m/s, λ = 1.28 m, f = ???).
  • Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
  • Identify the appropriate formula(s) to use.
  • Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.

Read About It!

Get more information on the topic of Sound and Music at The Physics Classroom Tutorial.

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