Thermal Energy Conductivity Quiz

What is the difference between insulators and conductors in terms of thermal energy conductivity?

• Insulators have low thermal conductivity, while conductors have high thermal conductivity.

• Insulators have no effect on thermal conductivity, while conductors have high thermal conductivity.

• Insulators and conductors have the same thermal conductivity.

• Insulators have high thermal conductivity, while conductors have low thermal conductivity.

Which material is a good conductor of heat: wood or metal?

• metal

• rubber

• plastic

• wood

Explain how heat is transferred through conduction, convection, and radiation.

• Heat is transferred through photosynthesis, respiration, and fermentation.

• Heat is transferred through conduction, convection, and radiation.

• Heat is transferred through osmosis, diffusion, and evaporation.

• Heat is transferred through precipitation, condensation, and sublimation.

What are the factors that affect the thermal conductivity of a material?

• Chemical composition, atomic number, and radioactivity

• Temperature, density, and specific heat capacity

• Color, texture, and shape

• Electrical resistance, magnetic field, and pressure

Which type of material is a better insulator: plastic or glass?

• glass

• metal

• plastic

• wood

How does the thickness of a material affect its thermal conductivity?

• Thickness of a material has no effect on its thermal conductivity.

• Thicker materials have lower thermal conductivity.

• Thicker materials have higher thermal conductivity.

• Thicker materials have the same thermal conductivity as thinner materials.

What is the role of air pockets in insulating materials?

• Air pockets act as barriers to heat transfer

• Air pockets absorb moisture from the environment

• Air pockets increase the conductivity of the material

• Air pockets have no effect on heat transfer

Why are metals good conductors of heat compared to non-metals?

• Metals have a higher melting point than non-metals

• Metals have a higher boiling point than non-metals

• Metals have free electrons that can easily transfer heat energy.

• Metals have a lower density than non-metals

How does the surface area of an object affect its thermal conductivity?

• The surface area of an object decreases its density, affecting its thermal conductivity.

• The surface area of an object affects its thermal conductivity.

• The surface area of an object has no effect on its thermal conductivity.

• The surface area of an object increases its electrical conductivity.

What is the role of vacuum in insulating materials?

• Vacuum acts as a barrier to heat transfer

• Vacuum absorbs moisture from the environment

• Vacuum increases the conductivity of the material

• Vacuum has no effect on heat transfer