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Ch 3 sec. 1 What is Pressure? amount of force per unit area on an object surface P = F/A

Ch 3 sec. 1 What is Pressure? amount of force per unit area on an object surface P = F/A unit for pressure is pascal (Pa). pressure and weight pg. 68 weight(N) = mass x acceleration of gravity acceleration of gravity = 9.8m/s 2. What is the weight of a football with a mass of 350g?.

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Ch 3 sec. 1 What is Pressure? amount of force per unit area on an object surface P = F/A

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  1. Ch 3 sec. 1 What is Pressure? amount of force per unit area on an object surface P = F/A unit for pressure is pascal (Pa)

  2. pressure and weight pg. 68 weight(N) = mass x acceleration of gravity acceleration of gravity = 9.8m/s2 What is the weight of a football with a mass of 350g? What is the pressure the football exerts on your hand if the area touching your hand = 0.003m2

  3. A bookcase has a base 1m long and 0.5m wide. It has a mass of 300 kg. Find the pressure it exerts on the floor in Pa. A =

  4. Mrs. Rockers computer has a base of 0.6 m wide and 0.8 m long. It has a mass of 2 kg. What pressure does it exert on the table.

  5. The turtle has a mass of .5 kg and an area of .2m2 . What is the pressure that the turtle exerts on his block.

  6. A 110-kg TV set is resting on a table. Its bottom has an area of 0.5m2. What pressure in Pa does the TV set exert on the table? A 600 - kg elephant has a foot with an area of .25m2 . How much pressure does it exert on the ground with all 4 feet.

  7. Key to solving problems If given force and area just divide f/a If given weight and area just divide weight/area because weight is a force If given length and width first find area lxw = a All formulas will be given in directions

  8. Pressure and area As surface area of an object decreases the pressure it exerts increases.

  9. Fluids (FC) has no definite shape and flows a gas, a liquid, or plasma liquid - takes shape of container gas - fills its container.

  10. Pressure and Fluid height - When the height of a fluid is greater the pressure on the bottom of the container is greater.

  11. Pressure of a fluid acts on all sides of an object in the fluid.

  12. What happens to pressure as you increase altitude. a. increase b. decrease

  13. pg. 72 Barometer - a tool used to measure pressure in the atmosphere end of sec. 1 test Wed. know calculations that were practiced. vocab. , notes on pressure and fluids.

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