PPT-Pendulums

Pendulums Gizmo Energy of a Pendulum Complete Pendulum handout Pendulums What affects the period of a pendulum Pendulums How does the kinetic energy and Potential energy relate to the motion of a pendulum. By: . Nahdir. Austin . Honors Physics. Period 2 . History of the . Pendelum. First used in the . H. an dynasty’s seismometer device by scientists Zhang . Heng. .. T. enth century Egyptian astronomer Ibn Yunis used a pendulum for time measurement.. General Physics. Periodic Motion. A . motion . that is regular and repeating. Examples. Circular motion. Mass bouncing up and down on a spring . Pendulums. Simple Harmonic Motion (SHM). motion that returns an object to its rest position. What is the motion simple pendulum called? . Starter. Look at the pendulum and describe its motion. . Too Easy? What is the time period of a simple pendulum? . Lesson 10/21. Pendulums oscillate (move side to side) . and. Resonance. Lecture 3. Pre-reading. : . §14.5–14.8. SHM: Vertical Springs. IMPORTANT: Set up coordinate system!!. Motion of vertical spring . is. described by simple harmonic motion with. ω = √(k/m). By . Slytherin. .  . Explaining Pendulums. The Explanation. Pendulums are weights that are hung from a rope/string/chain.. It can swing freely from this fixed point.. Here are some pictures of pendulums:. Period of a Pendulum: . Period based on length (L) and value of gravity (g). Uses/Applications: . Use the . magnitude. of gravity (9.8 m/s. 2. ). Example . 8. A mass (m = 5.67 kg) is attached to a rope with a length of 0.950 m. . Example 14.7 Finding the frequency of an oscillator. A spring has an . unstretched. length of 10.0 cm. A 25 g mass . is hung . from the spring, stretching it to a length of 15.0 cm. If . the mass . is pulled down and released so that it oscillates, what will . Physical pendulums take into account mass distribution, friction, air resistance. The force that pulls the mass back towards equilibrium is the . restoring force. Pendulums. If the restoring force is proportional to the displacement, then the pendulum’s motion is simple harmonic. Strategic Assessment. Using assessment tools involves three . stages: . Clarifying . the . elements of the targeted performance expectation, . Designing assessment . tasks that are precisely aligned to the specific . To get the best result of these gemstones and crystals, you need to buy the authentic products and you must certain steps so that you are not fooled with fake products. Only authentic stones and crystal will give you the benefits you want, otherwise fake products may also give you negative results. So before purchasing the gemstones, crystals, put them under magnification and ask the trader questions regarding the clarity, about its treatment, about its colour, its clarity and the weight.