Heat Transfer and the Atmosphere

What are the 3 ways that heat is transferred?

• A) Conduction, Convection, Radiation

• B) Conduction, Reflection, Refraction

• C) Convection, Radiation, Reflection

• D) Radiation, Refraction, Conduction

Conduction is heat transferred by ______.

• direct contact and thru a solid like holding hands; requires a medium.

• radiation through a vacuum; does not require a medium.

• convection currents in fluids; requires a medium.

• emission of infrared waves; does not require a medium.

Convection is heat transferred by ______.

• motion thru liquids like water; circular motion; requires a medium.

• conduction through solids; requires direct contact.

• radiation through empty space; does not require a medium.

• evaporation of liquids into gas.

Radiation is heat transferred by ______.

• waves

• conduction

• convection

• conduction and convection

Heat is transferred from the sun to the earth by ______.

• radiation.

• conduction.

• convection.

• evaporation.

What are the 3 things that happen to solar radiation?

• It is absorbed, reflected/scattered, or transmitted.

• It is absorbed, transmitted, and refracted.

• It is absorbed, emitted, and transmitted.

• It is absorbed, reflected, and refracted.

List the 4 laws governing radiation.

• All objects, at any temperature, emit radiant energy.

• Hotter objects radiate more total energy per unit area than colder objects do.

• The hottest radiating bodies produce the shortest wavelengths of maximum radiation.

• Objects that are good absorbers of radiation are good emitters as well

• All of these

Electromagnetic waves are:

• a type of mechanical wave

• a type of sound wave

• transverse waves consisting of changing electric fields and changing magnetic fields

• a type of wave that requires a medium

Heat is defined in terms of energy transfer as:

• the energy transferred between objects due to a temperature difference.

• the energy stored within an object.

• the energy required to change the state of a substance.

• the energy that an object possesses due to its motion.

Fill in the blank: _______ is a measure of the average energy of motion (kinetic energy) of the particles of a substance.

• temperature

• pressure

• volume

• mass