← Science Chapter 11 Test
5 Written Questions
5 Matching Questions
- As elevation increases, pressure
- What is pressure measured by?
- How could you measure pressure?
- How can a ship float?
- How do atomizers take advantage of Bernoulli's principle?
- a decreases
- b Newtons
- c with a barometer
- d the amount of water the ship displaces increases the buoyant force and therefore has a net force greater upwards than down.
- e 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.
5 Multiple Choice Questions
- if it would sink or float.
- 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.
- The faster the fluid moves, the less pressure it exerts within the fluid.
- 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.
5 True/False Questions
What is area measure by? → meters squared
How do hydraulic systems take advantage of Pascal's principle? → my multiplying the force over a greater area.
What is the SI unit of pressure? → force/area
A partly submerged object displaces an amount of liquid... → equal to its own volume.
What is buoyancy? → a force that acts in the opposite direction of gravity