Content Outline

Massachusetts Science Framework Standard/s

Concepts Objective

Associated Mathematics Skills

Prerequisite skills

III.  Forces in Fluids

    A. Fluid Pressure

      1. Define and Formula

      2. Pressure in Fluids

      3.. Air Pressure and the  Atmosphere

    B.  Forces and Pressure in Fluids

      1. Transmitting Pressure Fluids

         a. Pascals Principle

         b. Hydraulics

      2. Bernoulli’s Principle

         a. Wings and Lift

    C.  Buoyancy

       1. Buoyant Force

       2. Archmides Principle

       3. Density and Buoyancy

         a. Suspended, Sinking, Floating

T/E 3.3 Explain Bernoulli’s Principle and its effect on practical applications, i.e., airfoil design, spoiler design, carburetor.

T/E 3.4 Differentiate between hydraulic and pneumatic systems and provide examples of appropriate applications of each as they relate to manufacturing and transportation systems

T/E 3.5 Explain the relationship between velocity and cross-sectional areas in the movement of a fluid.

T/E 3.6 Solve problems related to hydrostatic pressure and depth in fluid systems.

· Define fluid.

· Define pressure.

· Calculate pressure.

· Relate water pressure

· to increases in depth.

· Relate air pressure to

· increased altitude.

· Explain Pascal’s

· principle.

· Explain a hydraulic

· system and give

· examples.

· Explain Bernoulli’s

· principle and give

· examples.

· Define buoyancy and relate it to the apparent loss of weight of an object in fluid.

· Explain Archimedes principle.

· Relate density to an objects ability to sink or float.

· Relate buoyancy to an objects ability to sink or float.

Be able to solve for the variables and supply appropriate units in each of the following formulae.

Liquid pressure = weight density x depth

Pressure = force/area

Weight density = w/V

 Where:

    w= weight

    V = volume

Density = m/v

 Where:

    m = mass

    v = volume

Area formula