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Pendulums

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Reminder: Bellworks were collected on Friday. Please hand yours in this morning if you haven’t already! Reggie graded and entered those that were turned in Friday. . Pendulums. Pendulums.

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PowerPoint Slideshow about 'Pendulums' - abe


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Presentation Transcript
slide1
Reminder: Bellworks were collected on Friday. Please hand yours in this morning if you haven’t already! Reggie graded and entered those that were turned in Friday.
slide3
Pendulums
  • A mass (bob) connected to a rod that experiences simple harmonic motion (SHM) as it swings back and forth without friction
  • Frequency (f) – cycles/second (Hz)
  • Period (T) - time for one cycle (sec)
slide4
f = 1/T
  • T = 2π (L/g) ½
  • L- length of cord
  • g= acceleration due to gravity (at sea level)
  • Does the mass of the bob have an effect on period?
slide6
You are building a grandfather clock and want the tick and tock to be separated by one second. How long do you make the cable?
bellwork
Bellwork
  • What length would you need to change a cord on a pendulum to decrease its period from 1.7 s to 1 s?
slide9
The length of a simple pendulum is 0.66 m, the pendulum bob has a mass of 310 g. It is released at an angle of 12° to the vertical. With what frequency does it oscillate?