KHAEMENES ACADEMY · PHYSICS 12 · WEEK 28 · DAY 04

Cooling-Curve Investigation

How does microscopic particle motion explain temperature and heat transfer?

Explicit physics instruction

This investigation uses temperature-time data to test a cooling model.

Use a cooling-curve dataset or safe water-temperature simulation. Track temperature versus time and compare energy-transfer models.

Preserve raw time/temperature values before calculating rates or fitting trends.

Core relation: q=mcΔT; energy conservation across a defined thermal system.

Worked example

If a sample cools from 80°C to 60°C in 10 min, average rate is −2°C/min over that interval; later intervals may cool more slowly.

Guided question

What graph reveals whether cooling rate remains constant?

Independent work

  1. Solve three thermal-energy calculations.
  2. Classify three heat-transfer mechanisms.
  3. State one system-boundary assumption.

Investigation / Data Lab

Use a cooling-curve dataset or safe water-temperature simulation. Track temperature versus time and compare energy-transfer models.

Preserve raw temperature-time data, calculated rates/energy changes, uncertainty, and one revision.

Misconception check

Two objects at the same temperature need not contain the same internal energy; mass and material matter.

Formative check

Which quantity is energy transfer caused by a temperature difference?

Reveal response

Heat.

Mentor evidence conference

Ask Archaemenes to audit signs, units, transfer mechanisms, and system boundaries.

Teacher guidance

Foundation: Use q=mcΔT.

Core: Combine energy calculations with transfer mechanisms.

Extended: Analyze cooling-curve residuals and nonconstant rates.