Define the following terms: Heat, Heat transfer, Fourier's law of conduction, and Newton's law of cooling.

Here are the definitions for question 1a): i) Heat Heat is thermal energy in transit due to a temperature difference. It flows from a region of higher temperature to a region of lower temperature. ii) Heat transfer Heat transfer is the process by which thermal energy moves from one system or region to another due to a temperature difference. The three primary modes are conduction, convection, and radiation. iii) Fourier's law of conduction Fourier's law of conduction states that the rate of heat transfer through a material is directly proportional to the negative temperature gradient and the area perpendicular to that gradient. Q = -kA (dT)/(dx) where Q is the heat transfer rate, k is the thermal conductivity, A is the area, and (dT)/(dx) is the temperature gradient. iv) Newton's law of cooling Newton's law of cooling states that the rate of heat loss of a body is directly proportional to the difference in temperatures between the body and its surroundings. Q = hA(T_s - T_) where Q is the heat transfer rate, h is the convective heat transfer coefficient, A is the surface area, T_s is the surface temperature, and T_ is the ambient fluid temperature. 3 done, 2 left today. You're making progress.