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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.4.5] - 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.

Resources:

Predecessor Standards:

  • 7.PS.3.1
    Construct and interpret data and graphs to describe the relationships among kinetic energy, mass, and speed of an object. Clarification Statements: Examples could include riding a bicycle at different speeds and rolling different-sized rocks downhill. Consider relationships between kinetic energy vs. mass and kinetic energy vs. speed separate from each other; emphasis is on the difference between the linear and exponential relationships. State Assessment Boundary: Calculation or manipulation of the formula for kinetic energy is not expected in state assessment.
  • 8.PS.2.2
    Provide evidence that the change in an object’s speed depends on the sum of the forces on the object (the net force) and the mass of the object. Clarification Statement: Emphasis is on balanced (Newton’s first law) and unbalanced forces in a system, qualitative comparisons of forces, mass, and changes in speed (Newton’s second law) in one dimension. State Assessment Boundaries: State assessment will be limited to forces and changes in motion in one dimension in an inertial reference frame and to change in one variable at a time. The use of trigonometry is not expected in state assessment.

Successor Standards:

No Successor Standards found.

Same Level Standards:

  • WCA.9-10.9
    Draw evidence from informational texts to support analysis, interpretation, reflection, and research. (See grades 9-10 Reading Standard 1 for more on the use of textual evidence.)
  • 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.