{
  "unit": 7,
  "standards": [
    "Work by variable force",
    "Hooke’s law",
    "Pumping fluids",
    "Hydrostatic force",
    "Moments and centers of mass",
    "Probability density",
    "Expected value",
    "Dimensional analysis"
  ],
  "evidence": [
    "lesson derivations",
    "pathway problem set",
    "investigation",
    "mastery check",
    "portfolio correction"
  ]
}