20. Heat and Temperature

The process by which heat moves through air or liquid is called:

In the context of heat transfer, does convection always transfer heat more quickly than conduction in all materials and situations?

In the context of heat transfer, how does heat flow between two objects?

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

Why did the transfer of energy between the two samples stop?

Which of the following processes primarily transfers heat from one object to another?

Which of the following is NOT a primary mechanism by which $\mathrm{heat}$ transfer occurs?

A steel rod is initially very cold. If it is placed close to a fire, which method of heat transfer will primarily cause the rod to become warmer?

Which type of heat transfer is primarily responsible for cooking a pancake when it is placed on a hot stove pan?

The temperature within the Earth’s crust increases about 1.0 C° for each 30 m of depth. The thermal conductivity of the crust is 0.80 J/s C°. Compare this heat to the 1000 W/m² that reaches the Earth’s surface in 1.0 h from the Sun.

Which of the following best describes how $\mathrm{thermal energy}$ is transferred between two objects at different $\mathrm{temperatures}$?

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

Which description best explains the flow of $Q$ (heat)?

Which type of energy transfer occurs during $\mathrm{conduction}$?

Which type of heat transfer can occur through empty space?