________can be defined as the product of power and time.
What is Energy?
100
A form of heat transfer that occurs by molecular motion in a fluid (liquid or gas).
What is convection?
100
Solar __________ is typically expressed as an instantaneous value, or rate.
What is irradiance?
100
Your monthly electric utility bill is typically calculated in units of________.
What is Energy? (kilowatt-hours OK).
100
A material’s ability to hold heat.
What is thermal mass?
200
In the Northern Hemisphere, the sun rises in the Southeast and sets in the Southwest during this season.
What is winter?
200
_______can be defined as the rate at which work is performed, or energy is converted from one form to another.
What is Power?
200
A form of heat transfer that can occur in a vacuum.
What is radiation?
200
Solar __________ is typically expressed in Peak Sun Hours.
What is insolation?
200
The ____________ is farther from the horizon at noon during the summer months than in the winter months.
What is the sun path?
300
The angle at which the sun’s rays fall on an object.
What is the angle of incidence?
300
For maximum annual solar gain, solar collectors should be tilted to an angle that is equal to __________.
What is the local latitude?
300
The name for the international (SI) unit for temperature.
What is Kelvin?
300
The component of total global solar radiation that may include ground-reflected radiation.
What is diffuse radiation?
300
Solar __________ refers to the moment when the sun crosses a local meridian and is at its highest point in the sky.
What is noon?
400
A timescale based on the apparent motion of the sun crossing a local meridian.
What is Solar Time?
400
The term typically given to the period between 9:00am and 3:00pm.
What is the solar window?
400
The horizontal angle between a reference direction (usually South in the Northern Hemisphere) and a horizontal line running perpendicular to the front edge of an array.
What is Array Azimuth Angle?
400
The absorption factor of a "true black" surface.
What is ONE (1)?
400
Solar __________ is typically represented in units of W/m2 or kW/m2
What is irradiance?
500
The amount of solar irradiation received over a period of time (usually a day).
What is insolation?
500
The thickness of the atmosphere that radiation must pass through to reach the Earth’s surface
What is air mass?
500
The transfer of heat energy that can only take place within an object or material, or between two objects that are in direct or indirect contact with each other.
What is conduction?
500
The angle between true geographic north and magnetic north.