Lesson: Conduction and Convection

In this lesson, we will learn how to describe heat transfer through solid materials via conduction and define the factors that determine the effectiveness of insulation.

Sample Question Videos

  • 04:03

Worksheet: Conduction and Convection • 6 Questions • 1 Video

Q1:

Which of the following is the correct definition of conduction?

Q2:

Which of the following does the energy transferred per second through a layer of insulating material depend on?

  1. The thickness of the material
  2. The mass of the material
  3. The color of the material
  4. The thermal conductivity of the material
  5. The temperature difference across the material

Q3:

Which of the following materials is likely to have the lowest thermal conductivity?

Q4:

Which of the following materials is likely to have the highest thermal conductivity?

Q5:

Which of the following is the correct definition of convection?

Q6:

Amelia wraps three beakers in different materials. She then fills the beakers with water at 1 0 0 ∘ C . She measures the temperature of the water in each beaker 30 minutes later. Her results are shown in the table.

Material Felt Cardboard Aluminum Foil
Initial Temperature of the Water 1 0 0 ∘ C 1 0 0 ∘ C 1 0 0 ∘ C
Temperature of the Water after 30 Minutes 3 4 ∘ C 3 8 ∘ C 2 5 ∘ C

Which material was the best insulator?

Which material was the worst insulator?
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