Conduction, Convection & Radiation — Drills · Grade 6 Science
Chapter: Energy, Heat & Thermal DesignWhat these drills covers
By the end of Conduction, Convection & Radiation you should be able to:
- I can explain why metals conduct far better than air or wood.
- I can explain how a convection current forms from a density change.
- I can explain how radiation differs from the other two and what surfaces affect it.
4 questions, multiple choice and written answer, each with a worked explanation.
Vocabulary used: convection, radiation, evidence, system boundary, uncertainty.
Problem 1
- All heat always rises regardless of the transfer mechanism.
- convection: Energy transport associated with bulk motion of a liquid or gas.
- Radiation requires air or water between source and receiver.
- A sample with missing measurements has proved those values are zero.
Answer and explanation
convection: Energy transport associated with bulk motion of a liquid or gas.
Energy transport associated with bulk motion of a liquid or gas.
Problem 2
- All heat always rises regardless of the transfer mechanism.
- Radiation requires air or water between source and receiver.
- radiation: Energy transfer by electromagnetic waves, which can cross empty space.
- Repeating any method makes every causal claim true.
Answer and explanation
radiation: Energy transfer by electromagnetic waves, which can cross empty space.
Energy transfer by electromagnetic waves, which can cross empty space.
Problem 3
Answer and explanation
Radiation does not require a material medium between source and receiver.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 4
Answer and explanation
No. It can reduce transfer rates under the stated design while other pathways and imperfections remain.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.