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Waves Tsunami info from NOAA http://www.pmel.noaa.gov/tsunami/indo_1204.html http://www.youtube.com/watch?v=BvbBgh9ux6A http://www.youtube.com/watch?v=BvbBgh9ux6A Japan 2011 Homework http://www.atmosedu.com/202Physics/wavesearthactivity. html

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Systems with a stable equilibrium point often exhibit Oscillations B is a stable equilibrium point because 1)When the ball is pushed to the right from B the force of gravity acts to pull it back to B 2)And when the ball is pushed to the left from B the force of gravity acts to pull it back to B

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The Period of an Oscillating system is the time it takes to complete one full cycle The period is the time it takes to go from A over to C and back to A.

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The frequency of an Oscillating system is the number of cycle per second and is just 1/Period The frequency unit of cycles per sec (1/s) has the special name Hertz (Hz)

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The frequency of an Oscillating system is the number of cycle per second The frequency unit of cycles per sec (1/s) has the special name Hertz (Hz) What is the frequency of vibration for a humming birds wings that has a period of 0.02 second?

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The frequency of an Oscillating system is the number of cycle per second The frequency unit of cycles per sec (1/s) has the special name Hertz (Hz) What is the frequency of vibration for a humming birds wings that has a period of 0.02 second?

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Since the frequency of an Oscillating system is the number of cycle per second, the period (number of seconds per cycle) is: A seismic signal has a frequency of 0.2 Hz. What is the period of this signal?

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Since the frequency of an Oscillating system is the number of cycle per second, the period (number of seconds per cycle) is: A seismic signal has a frequency of 0.2 Hz. What is the period of this signal?

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Period

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Longitudinal wave (like sound, or P-waves through Earth) Transverse waves (like water waves, light, S-waves through Earth)

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Constructive interferance Destructive Interferance

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Standing Waves (Interferance pattern that results when a wave traveling to the right interfers with an identical wave traveling to the left.

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