5 Written questions
5 Matching questions
- What does Archimedes' principle state?
- How does a submarine dive?
- What is buoyancy?
- What is the formula for density?
- What does Bernoulli's principle state?
- a that the buoyant force that is acting on an object is equal to the weight of the water that is displaced
- b The faster the fluid moves, the less pressure it exerts within the fluid.
- 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.
- d mass/volume
- e a force that acts in the opposite direction of gravity
5 Multiple choice questions
- 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.
- if it would sink or float.
- if the buoyant force is greater than gravity (weight)
- with a barometer
- fire truck, machines that raise cars
5 True/False questions
what is the formula for pressure? → force/area
What is the SI unit of pressure? → Pascals
What is a fluid? → The amount of force exerted on a surface
What is pressure? → The amount of force exerted on a surface
What is area measure by? → Newtons