Thermal Design: Compare, Improve & Retest — Drills · Grade 6 Science

Chapter: Energy, Heat & Thermal Design

What these drills covers

By the end of Thermal Design: Compare, Improve & Retest you should be able to:

4 questions, multiple choice and written answer, each with a worked explanation.

Vocabulary used: criterion, constraint, evidence, system boundary, uncertainty.

Problem 1

Recall the first key distinction: which statement is accurate?
  1. A changed design can inherit the old design’s measured results without retesting.
  2. The largest performance result automatically wins regardless of constraints.
  3. criterion: A stated measure of desired success in a design problem.
  4. A sample with missing measurements has proved those values are zero.
Answer and explanation

criterion: A stated measure of desired success in a design problem.

A stated measure of desired success in a design problem.

Problem 2

Recall the second key distinction: which statement is accurate?
  1. Repeating any method makes every causal claim true.
  2. A changed design can inherit the old design’s measured results without retesting.
  3. The largest performance result automatically wins regardless of constraints.
  4. constraint: A limit that the proposed solution must satisfy.
Answer and explanation

constraint: A limit that the proposed solution must satisfy.

A limit that the proposed solution must satisfy.

Problem 3

Without opening guidance: Which design fits the stated cost constraint?
Answer and explanation

A fits the limit. B performs better in the modeled temperature measure but is not feasible under that constraint unless it is redesigned.

Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.

Problem 4

Without opening guidance: Why can’t the redesign automatically use the old temperature drops?
Answer and explanation

Changing the feature can change heat-transfer rates. The new design must be tested under its own stated conditions.

Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.

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