Physics+20-Oscillatory+Motion+and+Mechanical+Waves

Describe the conditions that produce oscillatory motion 1. Describe oscillatory motion in terms of period and frequency 2. Define simple harmonic motion as a motion due to a restoring force that is directly proportional and opposite to the displacement from an equilibrium position 3. Explain, quantitatively, the relationships among displacement, acceleration, velocity and time for simple harmonic motion, as illustrated by a frictionless, horizontal mass-spring system or a pendulum, using the small-angle approximation 4. Determine, quantitatively, the relationships among kinetic, gravitational potential and total mechanical energies of a mass executing simple harmonic motion 5. Define mechanical resonance.

Students will describe the properties of mechanical waves and explain how mechanical waves transmit energy. 1. Describe mechanical waves as particles of a medium that are moving in simple harmonic motion 2. Compare and contrast energy transport by matter and by waves 3. Define longitudinal and transverse waves in terms of the direction of motion of the medium particles in relation to the direction of propagation of the wave 4. Define the terms wavelength, wave velocity, period, frequency, amplitude, wave front and ray as they apply to describing transverse and longitudinal waves 5. Describe how the speed of a wave depends on the characteristics of the medium 6. Predict, quantitatively, and verify the effects of changing one or a combination of variables in the universal wave equation (v = fλ) 7. Explain, qualitatively, the phenomenon of reflection as exhibited by mechanical waves 8. Explain, qualitatively, the conditions for constructive and destructive interference of waves and for acoustic resonance 9. Explain, qualitatively and quantitatively, the Doppler effect on a stationary observer of a moving source.