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5 Written questions

5 Matching questions

  1. What is buoyancy?
  2. How do chimneys take advantage of Bernoulli's principle?
  3. When will an object float?
  4. what is the formula for pressure?
  5. How do atomizers take advantage of Bernoulli's principle?
  1. a force/area
  2. b the flask at the top (when you squeeze it) creates a greater fluid speed which causes a lower pressure and the pressure in the bottle is greater and causes the liquid in the bottle to move up and out of the bottle.
  3. c if the buoyant force is greater than gravity (weight)
  4. d the wind on top of the chimney creates a lower pressure at the top, on the bottom is a greater pressure which forces the smoke and heat to rise
  5. e a force that acts in the opposite direction of gravity

5 Multiple choice questions

  1. The amount of force exerted on a surface
  2. By increasing its density with water and overcoming the buoyant force by adding more weight and not changing the volume and therefore not displacing anymore water to increase the buoyant force.
  3. that the buoyant force that is acting on an object is equal to the weight of the water that is displaced
  4. my multiplying the force over a greater area.
  5. mass/volume

5 True/False questions

  1. What can you tell about an object if you know the density?mass/volume

          

  2. As elevation increases, pressuredecreases

          

  3. How do planes (flying disks- same concept) take advantage of Bernoulli's principle?the shape of their wings are curved on the top which creates a greater distance and air has to cover to match the speed of the bottom of the wing. Therefore, the fluid on the top of the wing moves faster and creates a lower pressure while the bottom of the wing has a greater pressure causing a lift. this lift make the wing rise and the airplane with it.

          

  4. What are some example's of hydraulic lifts?The faster the fluid moves, the less pressure it exerts within the fluid.

          

  5. What does Bernoulli's principle state?The faster the fluid moves, the less pressure it exerts within the fluid.