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7 Written questions

6 Multiple choice questions

  1. The upward force that fluids exert on all matter. Buoyant Force is caused by differences in fluid pressure.
  2. The amount of matter in a certain volume. Water is more dense than air; and therefore, it exerts more pressure.
  3. The buoyant force on an object in a fluid is an upward force equal to the weight of the volume of the fluid that the object displace- displace means " take the place of"
  4. Pressure caused by the weight of the atmosphere. Earth's atmosphere is held in place by gravity. Although we don't feel this pressure because the fluids in our body exert an equal outward pressure. The closer you are to Earth's surface you are, the greater the pressure because you are "deep" in the atmosphere.
  5. This comes from air resistance.
  6. A change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of that fluid. Uses and examples: brakes, power, lifters, etc. Liquids are best used in hydraulic devices because they cannot be compressed into smaller spaces like gases can.

6 True/False questions

  1. Bernoulli's principleA change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of that fluid. Uses and examples: brakes, power, lifters, etc. Liquids are best used in hydraulic devices because they cannot be compressed into smaller spaces like gases can.

          

  2. ThrustMoving forwards comes from the engine.

          

  3. Fluid behaviorWhy does liquid travel up a straw when you drink from it? Because as pressure decreases the water pressure increases.

          

  4. Plane's and their pressurePressure caused by the weight of the atmosphere. Earth's atmosphere is held in place by gravity. Although we don't feel this pressure because the fluids in our body exert an equal outward pressure. The closer you are to Earth's surface you are, the greater the pressure because you are "deep" in the atmosphere.

          

  5. FluidsAny material that can flow and take shape of its container. This includes- Liquids and gases.

          

  6. Force, Pressure, and AreaForce divided by pressure= Area.