1 / 10

March 7, 2014

March 7, 2014. Homework: On pg. 87 in Notebook Review notes on Pascal’s Principle Go to Online Active Art site : Look at pg. 92- for info: Visit: Phschool.com use the web-code in your textbook—cgp-3033 Do Now:

ashlyn
Télécharger la présentation

March 7, 2014

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. March 7, 2014 Homework: On pg. 87 in Notebook • Review notes on Pascal’s Principle • Go to Online Active Art site : Look at pg. 92- for info: • Visit: Phschool.com • use the web-code in your textbook—cgp-3033 Do Now: • Update T.O.C: Pg: 86: Pascal’s & Hydraulics: pg. 87 Pascal’s & Hydraulics • Open Notebooks to pg. 84 & review Answers to reading check points with a friend.

  2. Pascal’s Principle-Hydraulic Devices- Fig- 15- pg. 92 -According to Pascal’s Principle, both pistons experience the same fluid pressure. -They have the same surface area, so they will experience the same force. Apply force to one piston. Force is transmitted through to the other piston.

  3. How is force multiplied in System B?–( Fig. 15: pg. 92) Force is applied to the piston Force on the larger piston is multiplied The force applied to the left piston is multiplied on the right piston because the right piston has a larger surface area.

  4. To get a greater force, the surface area of the second piston must be bigger Pressure in a fluid is transmitted equally to all parts… -If the surface area is too small there won’t be enough space for the force to spread out upon to lift a heavier object.

  5. March 10, 2014 • Homework: Section Assessment Questions: pg. 94 Problem #’s 1C and 2C • Do Now: -Write down homework -Open textbook to pg. 92 -Open Notebook to pg. 86 Begin copying down System B from fig. 15 on to pg. 86 in notebook- w/ arrows & labels leave space underneath

  6. How is force multiplied in System B?–( Fig. 15: pg. 92) Force is applied to the piston Force on the larger piston is multiplied due to its larger surface area The force applied to the left piston is multiplied on the right piston because the right piston has a larger surface area.

  7. Hydraulic systems use liquids to transmit pressure in a confined fluid • It multiplies force by applying the force to a smaller area The Increase in pressure is then transmitted to another part of the confined fluid, which pushes on the larger surface area Hydraulic brakes and lift systems

  8. Hydraulic systems multiply force • If the surface area on the left piston of a hydraulic lift is • How much is the force multiplied? • If the surface area on the left piston of a hydraulic lift is: • How much is the force multiplied?

  9. Answer in Notebook on pg. 87 • How does a hydraulic system apply Pascal’s Principle? • A Hydraulic system is a device that uses pistons with different surface areas to multiply a force that is transmitted through a fluid

  10. Hydraulic Brakes- pg. 94 Figure 16 • A car’s brake system is a hydraulic system • The hydraulic brake system of a car multiplies the force exerted on the brake pedal http://www.youtube.com/watch?v=VxLTDtaRCZk

More Related