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Science and Technology/Engineering > Grade High School > Technology/Engineering
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Science and Technology/Engineering | Grade : High School

Discipline - Technology/Engineering

Core Idea - Energy and Power Technologies

[HS.ETS.4.4] - Calculate and describe the ability of a hydraulic system to multiply distance, multiply force, and effect directional change. Clarification Statement: Emphasis is on the ratio of piston sizes (cross-sectional area) as represented in Pascal’s law.

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Same Level Standards:

  • AI.A-CED.A.4
    Rearrange formulas to highlight a quantity of interest using the same reasoning as in solving equations (Properties of equality).* For example, rearrange Ohm’s law R=V2/P to solve for voltage, V. Manipulate variables in formulas used in financial contexts such as for simple interest, I=Prt.
  • HS.ETS.4.1
    Research and describe various ways that humans use energy and power systems to harness resources to accomplish tasks effectively and efficiently. Clarification Statement: Examples of energy and power systems can include fluid systems such as hydraulics and pneumatics, thermal systems such as heating and cooling, and electrical systems such as electronic devices and residential wiring.
  • HS.ETS.4.2
    Use a model to explain differences between open fluid systems and closed fluid systems. Determine when it is more or less appropriate to use one type of system instead of the other. Clarification Statements: Examples of open systems can include irrigation, forced hot air systems, and air compressors. Examples of closed systems can include forced hot water systems and hydraulic brakes.
  • HS.ETS.4.3
    Explain how differences and similarities between hydraulic and pneumatic systems lead to different applications of each in technologies.
  • HS.ETS.4.5
    Explain how a machine converts energy, through mechanical means, to do work. Collect and analyze data to determine the efficiency of simple and complex machines.