PS 13.2 Formative

Which principle states that a change in the pressure at any point in a fluid in a closed container is transmitted equally and unchanged in all directions throughout the fluid?

• Archimedes' principle

• Bernoulli's

  principle

• Newton's

  principle

• Pascal's

  principle

The SI unit of pressure is

• Newton

• square meter

• Pascal

• Bernoulli

The operation of a hydraulic lift system is explained by

• Archimedes' principle

• Bernoulli's

  principle

• Newton's

  principle

• Pascal's

  principle

The hydraulic lift system of a dump truck is designed to multiply

• distance

• force

• pressure

• speed

Tags

NGSS.MS-PS2-2

As the speed of a fluid increases, the pressure within the fluid decreases.

• Archimedes' principle

• Bernoulli's

  principle

• Newton's

  principle

• Pascal's

  principle

The upward force acting on the wind of an airplane in flight.

(a)  

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

Tags

NGSS.MS-ETS1-1

Wings are sometimes used to create a downward force.

• true

• false

In a hydraulic lift system, an increased output force is produced because a constant fluid pressure is exerted on the larger area of the output piston.

• true

• false

T or F: The faster an airplane moves, the more lift the wings create.

• True

• False