Worksheet: Conduction and Convection

In this worksheet, we will practice describing heat transfer through solid materials via conduction and defining the factors that determine the effectiveness of insulation.

Q1:

Which of the following is the correct definition of conduction?

  • AConduction is the process of energy transferring from a hot object via the radiation of electromagnetic waves.
  • BConduction is the process of high-energy particles moving away from a part of a material that is hotter to one that is colder.
  • CConduction is the process of high-energy particles moving away from a part of a material that is colder to one that is hotter.
  • DConduction is the process of heat transferring from one part of a solid to another due to collisions between particles within the solid.

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
  • Aa, d, c
  • Ba, b, c
  • Cb, d, e
  • Da, d, e
  • Ec, d, e

Q3:

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

  • AIron
  • BCopper
  • CGold
  • DWood
  • ETin

Q4:

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

  • AGlass
  • BPlastic
  • CWood
  • DCopper
  • EFelt

Q5:

Which of the following is the correct definition of convection?

  • AConvection is the process of energy transferring from a hot object via the radiation of electromagnetic waves.
  • BConvection is the process of heat transferring from one part of a solid to another by the collision of particles and the movement of electrons within the solid.
  • CConvection is the process of high-energy particles moving away from a part of a material that is colder to one that is hotter.
  • DConvection is the process of high-energy particles moving away from a part of a material that is hotter to one that is colder.

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?

  • AAluminum foil
  • BFelt
  • CCardboard

Which material was the worst insulator?

  • AAluminum foil
  • BCardboard
  • CFelt

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.