Question 1

The combined albedo of the earth and the atmosphere is approximately ____ percent.

Accepted Answer

The albedo of the earth's surface varies between 0.1 to 0.4 depending on the type of land cover. However, when the atmosphere is taken into consideration, the combined albedo increases due to the reflection of sunlight off atmospheric particles such as clouds, aerosols, and gases like water vapor. The combined albedo of the earth and the atmosphere is approximately 30 percent.

Question 2

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

Accepted Answer

Wrapping an object in aluminum foil with the shiny side facing outward reflects sunlight away, helping to keep the object cool.

Question 3

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, which is why we perceive sunlight as visible light.

Question 4

The earth emits radiation with greatest intensity at

Accepted Answer

The Earth's surface and atmosphere emit heat in the form of infrared radiation, which is the longest wavelength of the electromagnetic spectrum. This is because the Earth's temperature (around 15°C) is much cooler than the temperature of the sun (around 5,500°C), which emits radiation at shorter, visible wavelengths. Thus, the Earth's radiation peaks at longer, infrared wavelengths.

Question 5

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

Accepted Answer

The atmospheric greenhouse effect is responsible for trapping heat in the Earth's atmosphere, which keeps the temperature at a habitable level. Without this effect, the Earth would lose heat rapidly and the average surface temperature would be significantly lower than it is now.

Question 6

If the present concentration of CO₂ doubles in 100 years,and climate models predict that for the earth's average temperature to rise 5°C,what gas must also increase in concentration?

Accepted Answer

The climate models predict a rise in temperature, which is typically caused by an increase in greenhouse gases that trap heat in the atmosphere. While CO₂ is a greenhouse gas, it is not as prevalent as water vapor, which is already present in significant amounts. Therefore, for the average temperature to rise 5°C, water vapor would need to increase in concentration along with other greenhouse gases. Nitrogen and oxygen are not greenhouse gases, and methane is not as abundant as water vapor in the atmosphere.

Question 7

Most of the radiation emitted by a human body is in the form of

Accepted Answer

The majority of the radiation emitted by a human body is in the form of infrared radiation, which is not visible to the naked eye.

Question 8

At which temperature would the earth be radiating energy at the greatest rate or intensity?

Accepted Answer

The rate of radiation increases with temperature, so the highest temperature, 105°F, results in the greatest rate of energy radiation.

Question 9

Which of the following statements is not correct?

Accepted Answer

Good absorbers of radiation are usually good emitters of radiation, not poor emitters. This is due to Kirchhoff's law of thermal radiation, which states that for an object in thermal equilibrium, the emissivity equals the absorptivity.

Question 10

At night,low clouds

Accepted Answer

Low clouds at night trap heat emitted from the Earth's surface, enhancing the atmospheric greenhouse effect by preventing heat from escaping into space.

Question 11

The atmospheric greenhouse effect is produced mainly by the

Accepted Answer

The atmospheric greenhouse effect is produced mainly by the absorption and re-emission of infrared radiation by the atmosphere. Greenhouse gases, such as carbon dioxide and water vapor, absorb infrared radiation emitted by the Earth's surface and trap the heat in the atmosphere, contributing to global warming. Visible light and ultraviolet radiation are not the main contributors to the greenhouse effect, as they are not absorbed and re-emitted in the same way as infrared radiation.

Question 12

Which of the following gases are mainly responsible for the atmospheric greenhouse effect in the earth's atmosphere?

Accepted Answer

While oxygen, nitrogen, and ozone do play a role in the atmosphere, they are not the main gases responsible for the greenhouse effect. The greenhouse effect is caused by the trapping of heat in the atmosphere by certain gases, primarily water vapor and carbon dioxide. Therefore, option D is the best choice.

Question 13

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

Ice (frost) can form on the tops of parked cars even when the air temperature is above freezing because of radiation cooling. As heat radiates from the car's surface to the colder atmosphere, the surface temperature drops below the dew point, causing water vapor in the air to condense and freeze onto the surface. This process is known as radiative cooling.

Question 14

Clouds NEVER form by

Accepted Answer

The answer of Clouds NEVER form by
...

Question 15

Suppose last night was clear and calm.Tonight low clouds will be present.From this you would conclude that tonight's minimum temperature will be

Accepted Answer

Low clouds act like a blanket, trapping warm air closer to the ground. This means less heat is lost to the atmosphere, making the temperature higher than last night's minimum temperature. Therefore, the correct answer is A) higher than last night's minimum temperature.

Question 16

Which principle best describes why holes develop in snow around tree trunks?

Accepted Answer

Snow absorbs infrared energy from the sun, which causes it to melt faster around objects like tree trunks that can also emit heat, leading to the formation of holes.

Question 17

Which of the following has a wavelength shorter than that of violet light?

Accepted Answer

Ultraviolet radiation has a shorter wavelength than violet light.

Question 18

Air that rises always

Accepted Answer

As air rises higher in the atmosphere, the surrounding atmospheric pressure decreases. This decrease in pressure causes the air to expand, which in turn causes the temperature of the air to decrease. This process is known as adiabatic cooling. Therefore, air that rises always expands and cools.

Question 19

The albedo of the moon is 7 percent.This means that

Accepted Answer

The definition of albedo is the percentage of incoming sunlight or radiation that is reflected by a surface. Therefore, the albedo of the moon being 7 percent means that 7 percent of the sunlight striking the moon is reflected, while the other 93 percent is absorbed or scattered.

Question 20

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

If the earth's average surface temperature were to increase, the amount of radiation emitted from the earth's surface would increase, as hotter objects emit more radiation. Additionally, the wavelength of peak emission would shift toward shorter wavelengths, in accordance with Wien's Law, which states that as the temperature of an object increases, the wavelength of peak emission decreases.

Quiz 2: Energy: Warming the Earth and the Atmosphere

The combined albedo of the earth and the atmosphere is approximately ____ percent.

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

The sun emits its greatest intensity of radiation in

The earth emits radiation with greatest intensity at

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

If the present concentration of CO₂ doubles in 100 years,and climate models predict that for the earth's average temperature to rise 5°C,what gas must also increase in concentration?

Most of the radiation emitted by a human body is in the form of

At which temperature would the earth be radiating energy at the greatest rate or intensity?

Which of the following statements is not correct?

At night,low clouds

The atmospheric greenhouse effect is produced mainly by the

Which of the following gases are mainly responsible for the atmospheric greenhouse effect in the earth's atmosphere?

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

Clouds NEVER form by

Suppose last night was clear and calm.Tonight low clouds will be present.From this you would conclude that tonight's minimum temperature will be

Which principle best describes why holes develop in snow around tree trunks?

Which of the following has a wavelength shorter than that of violet light?

Air that rises always

The albedo of the moon is 7 percent.This means that

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.

Quiz 2: Energy: Warming the Earth and the Atmosphere

The combined albedo of the earth and the atmosphere is approximately ____ percent.

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

The sun emits its greatest intensity of radiation in

The earth emits radiation with greatest intensity at

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

If the present concentration of CO2 doubles in 100 years,and climate models predict that for the earth's average temperature to rise 5°C,what gas must also increase in concentration?

Most of the radiation emitted by a human body is in the form of

At which temperature would the earth be radiating energy at the greatest rate or intensity?

Which of the following statements is not correct?

At night,low clouds

The atmospheric greenhouse effect is produced mainly by the

Which of the following gases are mainly responsible for the atmospheric greenhouse effect in the earth's atmosphere?

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

Clouds NEVER form by

Suppose last night was clear and calm.Tonight low clouds will be present.From this you would conclude that tonight's minimum temperature will be

Which principle best describes why holes develop in snow around tree trunks?

Which of the following has a wavelength shorter than that of violet light?

Air that rises always

The albedo of the moon is 7 percent.This means that

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.

If the present concentration of CO₂ doubles in 100 years,and climate models predict that for the earth's average temperature to rise 5°C,what gas must also increase in concentration?

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.