Question 1

Heat is energy in the process of being transferred from:

Accepted Answer

Heat is always transferred from hotter objects to colder objects, never in the opposite direction.

Question 2

If you want to keep an object cool while exposed to direct sunlight,you should:

Accepted Answer

Wrapping an object in aluminum foil with the shiny side facing outward reflects the sunlight and its heat away from the object, keeping it cooler than the other options listed.

Question 3

The cold feeling that you experience after leaving a swimming pool on a hot,dry,summer day represents heat transport by:

Accepted Answer

D

Question 4

The transfer of heat by molecule-to-molecule contact is:

Accepted Answer

Conduction is the transfer of heat through a material or from one object to another through direct contact between the molecules of the materials involved. This process occurs in solids, liquids, and gases where molecules are in close proximity to each other.

Question 5

The heat energy released when water vapor changes to a liquid is called:

Accepted Answer

The heat energy released when water vapor changes to a liquid is called latent heat of condensation. This is because the water molecules are releasing latent heat energy as they condense and form a liquid. Choice A is incorrect because latent heat of evaporation is the energy required to turn a liquid into a gas. Choice B is incorrect because latent heat of fusion is the heat energy required to turn a solid into a liquid. Choice C is incorrect because latent heat of fission is a term used in nuclear physics to describe the energy released during the splitting of an atomic nucleus.

Question 6

If the earth's average surface temperature were to increase,the amount of radiation emitted from the earth's surface would __________ and the wavelength of peak emission would shift toward __________ wavelengths.

Accepted Answer

An increase in temperature causes an increase in the amount of radiation emitted from the surface, as hotter objects radiate more energy. Additionally, according to Wien's Law, the wavelength of peak emission shifts towards shorter wavelengths as temperature increases.

Question 7

Snow will usually melt on the roof of a home that is a:

Accepted Answer

Snow will usually melt on the roof of a home that is a good conductor of heat because the heat from inside the house can easily transfer through the roof material, warming the snow and causing it to melt.

Question 8

Which of the following determine(s)the kind (wavelength)and amount of radiation that an object emits?

Accepted Answer

Temperature is the main determining factor for the kind and amount of radiation emitted by an object. As temperature increases, the objects emit radiation with shorter wavelengths and higher intensities, as described by Planck's law. Thermal conductivity, density, and latent heat, on the other hand, do not directly affect the radiation emitted by an object.

Question 9

Air that rises always:

Accepted Answer

As air rises, it experiences lower air pressure which causes it to expand. This expansion causes the air to cool down. Therefore, air that rises always expands and cools.

Question 10

Often before sunrise on a clear,calm,cold morning,ice (frost)can be seen on the tops of parked cars,even when the air temperature is above freezing.This condition happens because the tops of the cars are cooling by:

Accepted Answer

This condition happens due to radiation because the car's roof radiates its heat away into the clear sky, causing it to become colder than the surrounding air and resulting in the formation of ice (frost).

Question 11

If the average temperature of the sun increased,the wavelength of peak solar emission would:

Accepted Answer

According to Wien's law, the wavelength of peak emission is inversely proportional to the temperature of the radiating body. This means if the temperature of the sun increases, the wavelength of peak solar emission will shift to a shorter wavelength.

Question 12

The proper order from shortest to longest wavelength is:

Accepted Answer

The proper order from shortest to longest wavelength is ultraviolet, visible, infrared. Ultraviolet has the shortest wavelength, followed by visible light, and then infrared which has the longest wavelength in the given options.

Question 13

The processes of condensation and freezing:

Accepted Answer

Both condensation and freezing release sensible heat into the environment. When water vapor condenses into liquid water, the energy that was originally used to keep the water molecules apart in their gaseous state is now released into the surrounding air as sensible heat. Similarly, when a liquid freezes into a solid, the energy that was originally used to keep the molecules moving freely is now released into the surrounding air as sensible heat. Therefore, option A is the correct answer.

Question 14

This is released as sensible heat during the formation of clouds:

Accepted Answer

Latent heat is absorbed or released when water changes its state (evaporation or condensation). In the formation of clouds, water vapor in the atmosphere is condensed into liquid droplets, releasing the latent heat that was absorbed during evaporation. This is the primary source of energy that powers thunderstorms and other strong convective systems.

Question 15

The temperature of a rising air parcel:

Accepted Answer

As an air parcel rises in the atmosphere, it undergoes expansion due to decreasing atmospheric pressure. This expansion causes the parcel to cool adiabatically (without heat being added or removed). This is known as adiabatic cooling, which is why the temperature of a rising air parcel always cools due to expansion.

Question 16

Evaporation is a __________ process.

Accepted Answer

Evaporation is a cooling process because when a substance evaporates, its molecules gain enough energy to break free from the surface and become a gas, taking away heat from the surroundings in the process.

Question 17

The sun emits its greatest intensity of radiation in:

Accepted Answer

The sun emits its greatest intensity of radiation in the visible portion of the spectrum. This is why the sun appears very bright to our eyes, as human vision is adapted to this range of wavelengths.

Question 18

Without the atmospheric greenhouse effect,the average surface temperature would be:

Accepted Answer

The atmospheric greenhouse effect helps trap heat from the sun, leading to a warmer average surface temperature than what would be expected otherwise. Without this effect, the average surface temperature would be lower.

Question 19

A heat transfer process in the atmosphere that depends upon the movement of air is:

Accepted Answer

Convection is the process of heat transfer through the movement of fluids such as air or water. In the atmosphere, warm air rises due to its lower density and is replaced by cooler air, creating convection currents. This is the main process behind weather phenomena such as thunderstorms, hurricanes, and the formation of clouds. Therefore, the heat transfer process in the atmosphere that depends upon the movement of air is convection.

Question 20

Energy of motion is also known as:

Accepted Answer

Energy of motion is known as kinetic energy.

Quiz 2: Energy That Drives the Storms