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5 Written questions

5 Matching questions

  1. What does Archimedes' principle state?
  2. How does a submarine dive?
  3. What is buoyancy?
  4. What is the formula for density?
  5. What does Bernoulli's principle state?
  1. a that the buoyant force that is acting on an object is equal to the weight of the water that is displaced
  2. b The faster the fluid moves, the less pressure it exerts within the fluid.
  3. c 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.
  4. d mass/volume
  5. e a force that acts in the opposite direction of gravity

5 Multiple choice questions

  1. 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.
  2. if it would sink or float.
  3. if the buoyant force is greater than gravity (weight)
  4. with a barometer
  5. fire truck, machines that raise cars

5 True/False questions

  1. what is the formula for pressure?force/area


  2. What is the SI unit of pressure?Pascals


  3. What is a fluid?The amount of force exerted on a surface


  4. What is pressure?The amount of force exerted on a surface


  5. What is area measure by?Newtons