1. Harmonic Motion Repeats itself over and over again Examples?

2. Cycle Building block of harmonic motion Unit of motion that repeats over and over Harmonic motion = sequence of cycles

3. Harmonic motion in Nature Examples? –Heart –Solar system –Electrons moving around atom –El Nino, La Nina Oscillators- systems that show harmonic motion

4. Harmonic motion in art and music Examples? Music Color

5. Harmonic Motion in technology Cell phones FM radio Telling time - Grandfather clocks, atomic clocks

6. Harmonic Motion Period- time to complete one cycle Frequency- number of cycle per second One cycle per second= a hertz (Hz)

7. Period and Frequency T= 1/f f= 1/T T= Period (seconds) f= frequency in Hz

8. Amplitude- size of the cycle Damping- gradual loss of amplitude (friction)

9. Graphing Harmonic motion Use positive and negative values Start zero halfway up y-axis

11. Amplitude from graph Half the distance between the highest and lowest points on the graph Amplitude = 1/2 (high-low)

13. Period from graph Time difference between the beginning of the cycle and the end Period = (ending time- beginning time)

15. Examples of Oscillators Pendulum Mass on a spring Vibrating string