20. Heat and Temperature

Which of the following scenarios best demonstrates conduction as a mode of heat transfer?

Which of the following is NOT a primary mechanism by which heat is transferred from one object to another?

The Earth is warmed by solar energy. How is this energy transferred from the $\mathrm{Sun}$ to the $\mathrm{Earth}$?

Heat transfer between two substances is affected by their specific heat $c$ and the difference in their temperatures $\Delta T$. Which of the following best describes the other main factor that influences the amount of heat transferred?

Which of the following lists correctly identifies the three primary mechanisms by which thermal energy is transferred between objects?

In the context of popping popcorn in a microwave, how does heat primarily transfer from the hot filament to the popcorn kernel?

When a beam of $\mathrm{thermal} \mathrm{radiation}$ strikes two different surfaces, one made of $\mathrm{ground}\left(\mathrm{soil}\right)$ and the other of $\mathrm{polished} \mathrm{marble}$, which surface will reflect more $\mathrm{thermal} \mathrm{energy}$?

Which of the following is considered the most direct type of heat transfer?

Which of the following lists correctly identifies the three primary mechanisms by which $\mathrm{heat}$ is transferred?

In the context of heat transfer, can frozen ice transfer thermal energy to another substance?

In the context of heat transfer, what is the name of the process by which heat is transferred through direct contact between two objects?

Which of the following best describes the primary mode of heat transfer responsible for the heat you can feel when you place your hand near the engine of a running car?

Which of the following scenarios is best categorized as heat transfer by conduction?

Which of the following best describes conduction in the context of heat transfer?