Physics I / Problem-Solving: Waves, Fluids, and Thermodynamics
Practice question · Fill in the blanks

Complete the following passage by choosing the correct terms from the word bank.

Conservation of energy is central to physics. In thermodynamics, ΔU=QW\Delta U = Q - W; in fluid flow, Bernoulli shows kinetic plus ______ plus potential energy is constant; in wave motion, energy flux is proportional to the square of the ______.

Word bank: pressure · amplitude · frequency · volume · wavelength · velocity

Hints
  1. The same conserved quantity appears in all three domains.
  2. It merely changes form as it moves between them.
Show the answer

Conservation of energy is central to physics. In thermodynamics, ΔU=QW\Delta U = Q - W; in fluid flow, Bernoulli shows kinetic plus pressure plus potential energy is constant; in wave motion, energy flux is proportional to the square of the amplitude.

Why

Energy conservation unifies mechanics, fluid dynamics, and wave physics.

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