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AP Environmental Science
Unit 4: Earth Systems and Resources
4.7 Solar Radiation and Earth's Seasons
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Cards (80)
Solar radiation drives Earth's weather patterns and climate through the greenhouse
effect
High-energy waves like UV radiation can disrupt
biological
molecules.
Solar radiation drives Earth's weather and climate through the greenhouse
effect
What type of solar radiation supports life through photosynthesis?
Visible light
Latitudinal differences in
solar radiation
are a primary driver of Earth's climate.
Earth's axial tilt is approximately
23.5°
The Earth's orbit is perfectly circular.
False
Match the season with its corresponding key event:
Spring ↔️ Spring Equinox
Summer ↔️ Summer Solstice
Autumn ↔️ Autumn Equinox
Winter ↔️ Winter Solstice
The solar constant, denoted by
S
, quantifies the intensity of solar radiation.
Which type of solar radiation has the lowest energy level?
Infrared radiation
Infrared radiation
warms the Earth's surface and atmosphere.
Why does solar radiation vary at different latitudes?
Angle of incidence
Match the latitude region with its angle of incidence:
Equatorial ↔️ Direct
Polar ↔️ Shallow
Mid-Latitudes ↔️ Moderate
Earth's axial tilt is the angle of
23.5°
between its rotational axis and its orbital plane.
What happens to solar radiation when the Northern Hemisphere is tilted towards the Sun?
Summer
What is the angle of Earth's axial tilt?
23.5
°
23.5°
23.5°
When the Northern Hemisphere is tilted towards the Sun, it receives high levels of solar
radiation
Match the hemisphere with its season when tilted towards the Sun:
Northern Hemisphere ↔️ Summer
Southern Hemisphere ↔️ Winter
Order the seasons in the Northern Hemisphere based on Earth's orbit around the Sun:
1️⃣ Spring
2️⃣ Summer
3️⃣ Autumn
4️⃣ Winter
The Spring Equinox occurs on
March
What occurs during the Summer Solstice in the Northern Hemisphere?
Longest day
Match the event with its description:
Solstice ↔️ Maximal tilt towards Sun
Equinox ↔️ Sun crosses celestial equator
The Winter Solstice marks the shortest day of the year in the Southern Hemisphere.
False
What are the three components of solar radiation?
Visible light, infrared, UV
Visible light has a wavelength range of
380
−
750
380 - 750
380
−
750
nm and drives photosynthesis
Infrared radiation
warms the Earth's surface and atmosphere.
Match the type of solar radiation with its key impact:
Visible light ↔️ Enables vision
Infrared radiation ↔️ Heats Earth
Ultraviolet (UV) radiation ↔️ Causes sunburns
Why does solar radiation vary at different latitudes?
Angle of incidence
At the equator, sunlight strikes at a direct angle, resulting in higher
temperatures
Earth's seasons are primarily affected by its axial tilt and
revolution
around the Sun.
Order the seasons in the Northern Hemisphere from warmest to coldest:
1️⃣ Summer
2️⃣ Spring
3️⃣ Autumn
4️⃣ Winter
What is the approximate inclination of Earth's axial tilt?
23.5
°
23.5°
23.5°
Earth completes one orbit around the Sun every
365.25
days.
The Northern Hemisphere experiences spring when tilted towards the
Sun
.
Match the hemisphere with its key seasonal event:
Northern Hemisphere ↔️ Summer Solstice
Southern Hemisphere ↔️ Winter Solstice
What type of path does the Earth follow in its orbit around the Sun?
Elliptical path
The Earth completes one revolution around the Sun approximately every
365.25
days.
When the
Northern Hemisphere
is tilted towards the Sun, it experiences spring and summer.
What seasons does the Southern Hemisphere experience when the Northern Hemisphere has spring and summer?
Autumn and winter
Solstices and equinoxes are astronomical events marking the change of
seasons
.
See all 80 cards
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