Question

1. You are in charge of deciding the location in the US, that would produce the most energy to sell to the grid from a photovoltaic array system. Where would you site it?

2. Energy stored in a material that has gone thru a phase change is referred to as _____heat, while energy stored in a material by an increase in temperature is referred to as __________ heat.

3. Weather, thru the movement of air masses uses which of the 3 methods to move heat around?

4. Why does the sky look blue during the day, but black at night?

Answer 1

Ans

1. I would site it in Riverside East California (147,910 acres (18,035–32,463 MW, reference Encylopedia).

2. Energy stored in a material that has gone through a phase change is referred to as _latent_ heat, while energy stored in a material by an increase in temperature is referred to as _specific_ heat.

3. The three methods to move heat around: 1) convection. 2) conduction. 3) radiation.

4. The sky look blue during day because during day sunlight is scattered by the particles in atmosphere, while at night there is no sunlight to be scattered by particles. Hence sky looks black at night.