Does weight affect how fast the pendulum swings? Does doubling the string length cause the speed to become one half of the original? Does weight affect how close to the original height the bob returns after one swing? Does string length affect how close to the original height the bob returns after one swing?

String Tension = 0.01 N Pendulum bob Weight = 0.01 N 1. What are the two forces acting on the bob? _____ 2. What is the direction of each force? _____ 3. Using the Cartesian coordinate plane (x-y coordinate plane) what is the sign of an upward force? These prices are for pendulum clocks, either weight driven or spring driven. Any case work will be extra. The most popular Seth Thomas mantel clock movement is the No. 89. This movement was used in mantel and shelf clocks and from about 1900 to 1940. Before that, a movement with the escapement at the back was used in Seth Thomas mantel clocks.

WEIGHTS AND PENDULUM CONDITION: Very Good. Small scratches on middle weight, fancy lyre pendulum matches the dial center. AGE: 1997 - 17 Years old. APPROXIMATE DIMENSIONS: 83 ¾” high x 24 1/2 “ wide x 14” deep

• Students often think mass or weight is the primary factor affecting the period of a pendulum. Some think a pendulum with a lighter bob moves faster while others think that a pendulum with a heavier bob moves faster (Stepans 2008). • Some students cannot distinguish the effects of gravity, air resistance, and fric- Pendulum Assemblies, Rods, Bobs, ... 80mm x 405mm polished nickel plated split hook end 7/32” wide rod with rating nut & bob. Regularly $15.00. While supplies last. ...

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Bob Medical Weight Loss is Pennsylvania's Oldest and Largest Medical Weight Loss Program. We have offices in eight locations throughout Western and Central Pennsylvania. Our staff has been well trained and a majority of our staff members have been with us for many years. Apr 28, 2014 · One can duplicate Galileo's pendulum experiments by timing a weight swinging on the end of a string. For not too large amplitudes, the time period for one complete cycle will be the same regardless of amplitude. The period does however depend on the length of the string. A longer pendulum will take longer to complete one cycle.

Everything pendulum related. Description: Polished brass 100mm (4”) bob with 12-5/8” (320mm) brass rod with split end top hook, rating assembly, and lyre grid. Use on 45cm movements. So, for many of these clocks that are available today, they are missing components such as their original dials, weights, pendulum sticks & bobs. Reproduction parts are a big business today as many collectors buy these parts to complete their # 2's. The bob I offer to you today is all original & is in excellent condition. The diameter is 4 1/2". The Pendulum Clock Resonance may be desirable or undesirable. For centuries the most precise timepiece was the pendulum clock. A weight or spring supplied potential energy at the resonant frequency interval to compensate for kinetic energy loss due to friction and air drag. This kept the amplitude constant.

Jan 01, 2009 · Weight of the bob - 50 g and 200 g Type of string (maybe use twine) Use the dowel to hold the pendulum Knot or loop? Using a knot is more stable Drop zone - Tape down dowel so it doesn't move (stabilize) across tables 10 second time period and count # of swings (the # of swings is the only variable) swing = back and forth Test one string at a time pendulum wire attached as one unit. You only need to bend a hook shape at the end of the wire to hold the pendulum bob. When bending a wire pendulum for the bob the hook must be shaped so that the bob hangs in line with the

Weights can vary by large amounts. On some clocks serving the same purpose, meaning a large dial, in the instance I'm trying to describe, the difference can be huge. I've got one clock in for repair that uses a bob (name of pendulum weight) under 10#, and another from a different maker at around 100#. Some are heavier. A pendulum is an object that is attached to a pivot about which it can swing freely. This object is subject to a restoring motion that will accelerate it toward an equilibrium position. When the pendulum is displaced from its place of rest, the restoring force will cause the pendulum to oscillate about the equilibrium position. A basic example is the simple gravity pendulum or bob pendulum ... Find many great new & used options and get the best deals for Antique or Vintage Clock Parts - European Mantel Clock Pendulum Bob Weight at the best online prices at eBay! An engineer builds two simple pendula. Both are suspended from small wires secured to the ceiling of a room. Each pendulum hovers 2 cm above the floor. Pendulum 1 has a bob with a mass of 10 kg. Pendulum 2 has a bob with a mass of 100 kg. Describe how the motion of the pendula will differ if the bobs are both displaced by 12º. Solution

Movement for clock with pendulum system - Radio controlled UTS - Germany design Pendulum not included - Canon 11 or 18 mm ... Delivery weight: 100 g Pendulum for ... The 'Bob' is the round disk at the bottom of the pendulum. Moreover, the CM length on the movement will indicate the length of the pendulum from the TOP of the movement all the way down to the bottom of the pendulum nut threads. This is an approximate length that depends on other factors such as bob diameter and weight of the pendulum.