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February 14, 2014

February 14, 2014. Homework : Read textbook pg. 76-79 and answers questions from sheet in notebook on pg. 73 & 74 DoNow : - Write down homework Update TOC: pg 73, 74: Fluid Pressure Q& A H.W- Glue/ Tape sheet on to pg. 73 Open textbook to pg. 75 Open notebook to page 71.

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February 14, 2014

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  1. February 14, 2014 Homework: Read textbook pg. 76-79 and answers questions from sheet in notebook on pg. 73 & 74 DoNow: -Write down homework Update TOC: pg 73, 74: Fluid Pressure Q& A H.W- Glue/ Tape sheet on to pg. 73 Open textbook to pg. 75 Open notebook to page 71

  2. What does Pressure depend on? • Pressure depends on the size of the area over which a force is distributed • The larger the area that the force is being spread over, the less pressure is exerted. • What happens to the pressure if the same force is exerted on a smaller area? ----The pressure increases

  3. What do you think? Imagine you are designing a backpack. How could you apply information about pressure and area to backpack straps so students can carry heavy books comfortably? Having wider straps that have a larger area would exert less pressure than narrow or thinner width straps

  4. Pressure and Area Which type of shoe would you use to keep from sinking in the snow? Snow shoes: A person wearing them is the same weight, but the snow shoes (which have a larger area) spread the weight over a larger area.

  5. P= Force/Area I Hope I don’t have to Force you into measuring and calculating…don’t worry…. No Pressure! The unit of pressure is a Pascal(Pa): 1 Pa = 1N/m² Force = Newton's (N) Area = cm² or m²

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