Forces in Fluids 1

In order to calculate pressure exerted on a surface, what quantity is divided by surface area?

• altitude

• force

• mass

• volume

What is the SI unit of pressure?

• 
  

  $\frac{g}{cm^3}$
  

• $\frac{m}{s^2}$

• the Newton

• the Pascal

Atmospheric pressure is caused by

• air currents

• the weight of the atmosphere above a particular location

• clouds

• the altitude above sea level

Tags

NGSS.MS-ESS2-5

The operation of a hydraulic lift system is explained by

• Archimedes' Principle

• Bernoulli's Principle

• Newton's Principle

• Pascal's Principle

Where will the greatest increase in pressure occur if you squeeze the middle of an upright, closed soft-drink bottle?

• The top of the bottle

• The middle of the bottle

• The bottom of the bottle

• The pressure will increase equally everywhere within the bottle

The upward force acting on the wing of an airplane in flight is called:

• drag

• lift

• thrust

• weight

Which of the following statements is true about an airplane wing during flight?

• Air above the wing travels faster than air below the wing

• Air below the wing travels faster than air above the wing

• The wing exerts pressure equally in all directions

• The lift acting on the wing reduces the weight of the wing

The upward force acting on an object submerged in a fluid is called

• buoyant force

• drag

• pressure

• weight

The strength of the buoyant force acting on an object in a fluid depends on the object's

• mass

• surface area

• volume

• weight

The buoyant force on an object in a fluid is equal to the weight of the:

• fluid

• fluid surrounding the object

• fluid displaced by the object

• object