Podcast
Questions and Answers
How long does it take for the Earth to complete one rotation on its axis?
How long does it take for the Earth to complete one rotation on its axis?
- 24 hours (correct)
- 12 hours
- 7 days
- 365.25 days
What phenomenon is primarily caused by the Earth's rotation?
What phenomenon is primarily caused by the Earth's rotation?
- Tidal changes
- The phases of the moon
- Day and night (correct)
- The changing of the seasons
If the Earth stopped rotating, what would be the most likely result for the half facing the sun?
If the Earth stopped rotating, what would be the most likely result for the half facing the sun?
- Alternating periods of day and night
- Constant night and freezing temperatures
- Mild temperatures and normal day/night cycles
- Constant day and continuous warmth (correct)
What is the movement of the Earth around the Sun called?
What is the movement of the Earth around the Sun called?
Approximately how long does it take for the Earth to complete one revolution around the Sun?
Approximately how long does it take for the Earth to complete one revolution around the Sun?
Which of the following is an effect of the Earth's revolution around the Sun?
Which of the following is an effect of the Earth's revolution around the Sun?
What is defined as a temporary period of change in climate?
What is defined as a temporary period of change in climate?
What causes the different seasons on Earth?
What causes the different seasons on Earth?
During which solstice does the North Pole tilt directly toward the Sun?
During which solstice does the North Pole tilt directly toward the Sun?
When does the wet season typically occur in the Philippines?
When does the wet season typically occur in the Philippines?
What are the typical characteristics of the dry season in the Philippines?
What are the typical characteristics of the dry season in the Philippines?
Between which months does the dry season usually occur in the Philippines?
Between which months does the dry season usually occur in the Philippines?
Which primary factor contributes to the Philippines experiencing high temperatures and high humidity?
Which primary factor contributes to the Philippines experiencing high temperatures and high humidity?
What is the seasonal wind system known as in the Philippines?
What is the seasonal wind system known as in the Philippines?
Which monsoon is responsible for bringing heavy rains and creating the wet season in the Philippines?
Which monsoon is responsible for bringing heavy rains and creating the wet season in the Philippines?
Which monsoon is associated with creating the dry season in the Philippines?
Which monsoon is associated with creating the dry season in the Philippines?
How would the length of day and night be affected if Earth's axis were not tilted?
How would the length of day and night be affected if Earth's axis were not tilted?
If the Earth's orbit were perfectly circular instead of elliptical, which of the following would likely NOT occur?
If the Earth's orbit were perfectly circular instead of elliptical, which of the following would likely NOT occur?
In a hypothetical scenario where Earth's rotation slowed significantly, what would be the most immediate consequence for coastal regions?
In a hypothetical scenario where Earth's rotation slowed significantly, what would be the most immediate consequence for coastal regions?
How might the elimination of monsoon seasons affect agriculture in a country like the Philippines?
How might the elimination of monsoon seasons affect agriculture in a country like the Philippines?
How is the length of a day related to the speed of the Earth's rotation?
How is the length of a day related to the speed of the Earth's rotation?
If Earth's axis had no tilt, how would this influence the experience of seasons in temperate regions?
If Earth's axis had no tilt, how would this influence the experience of seasons in temperate regions?
What would be the immediate result on areas nearest the equator, if the Earth's rotation suddenly sped up?
What would be the immediate result on areas nearest the equator, if the Earth's rotation suddenly sped up?
What changes would happen to a monsoon-dependent region if the Earth's revolution time shortened?
What changes would happen to a monsoon-dependent region if the Earth's revolution time shortened?
What adjustments would farmers most likely need to make if the dry season in the Philippines progressively extended?
What adjustments would farmers most likely need to make if the dry season in the Philippines progressively extended?
Why is it still warm during the wet season due to Habagat, despite the frequent heavy rains?
Why is it still warm during the wet season due to Habagat, despite the frequent heavy rains?
Which mitigation strategy would be LEAST useful for an agriculture sector that experienced prolonged Amihan seasons?
Which mitigation strategy would be LEAST useful for an agriculture sector that experienced prolonged Amihan seasons?
What ecological impact is mostly associated with altered wind patterns and prolonged Habagat seasons?
What ecological impact is mostly associated with altered wind patterns and prolonged Habagat seasons?
How can local communities prepare for extended periods with the Amihan monsoon?
How can local communities prepare for extended periods with the Amihan monsoon?
Which one of these occurrences is least related to the rotation of Earth?
Which one of these occurrences is least related to the rotation of Earth?
The Earth is at Perihelion(closest to the Sun) on January 5th, and Aphelion(farthest from the sun) on July 5th. How does this affect seasons in the Philippines?
The Earth is at Perihelion(closest to the Sun) on January 5th, and Aphelion(farthest from the sun) on July 5th. How does this affect seasons in the Philippines?
If global warming increases ocean temperatures, how would it affect a community used to Habagat?
If global warming increases ocean temperatures, how would it affect a community used to Habagat?
Where would a community relocate to in the Philippines, if there was a prolonged amiha?
Where would a community relocate to in the Philippines, if there was a prolonged amiha?
For a specific season, how does the Earth's tilt impact the incidence and intensity of solar radiation received at a given location?
For a specific season, how does the Earth's tilt impact the incidence and intensity of solar radiation received at a given location?
Compared to areas further away from the equator, what is true about areas near the equator in the Philippines?
Compared to areas further away from the equator, what is true about areas near the equator in the Philippines?
If a meteorologist mentioned that a community would be experiencing La Niña what can be derived about rainfall?
If a meteorologist mentioned that a community would be experiencing La Niña what can be derived about rainfall?
Assuming a community planned a celebration, around the summer solstice when the axis is tilted towards the sun, and the Earth's revolution path was sped up. What can be said about their celebration date?
Assuming a community planned a celebration, around the summer solstice when the axis is tilted towards the sun, and the Earth's revolution path was sped up. What can be said about their celebration date?
The municipality of San Bernando planned to reforest. Which time of the year they would want to start?
The municipality of San Bernando planned to reforest. Which time of the year they would want to start?
Flashcards
What is Earth's rotation?
What is Earth's rotation?
The spinning of Earth on its axis.
What causes day and night?
What causes day and night?
The movement of the Earth on its axis, causing day and night.
How long is one Earth rotation?
How long is one Earth rotation?
One full rotation takes 24 hours.
Day and Night distribution
Day and Night distribution
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What is Earth's Axial Tilt?
What is Earth's Axial Tilt?
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Unequal Day/Night Length
Unequal Day/Night Length
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What if Earth didn't rotate?
What if Earth didn't rotate?
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What is Earth's revolution?
What is Earth's revolution?
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Celestial Revolutions
Celestial Revolutions
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How long is one revolution?
How long is one revolution?
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What is the orbit?
What is the orbit?
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What shape is Earth's orbit?
What shape is Earth's orbit?
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What causes seasons?
What causes seasons?
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What is a season?
What is a season?
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Summer Solstice
Summer Solstice
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Winter Solstice
Winter Solstice
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Earth's Dual Motion
Earth's Dual Motion
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Factors affecting seasons
Factors affecting seasons
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Philippine Location
Philippine Location
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Direct Sunlight
Direct Sunlight
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Philippine Climate Traits
Philippine Climate Traits
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What are monsoons?
What are monsoons?
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Northeast Monsoon (Amihan)
Northeast Monsoon (Amihan)
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Southwest Monsoon (Habagat)
Southwest Monsoon (Habagat)
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Monsoons and Seasons
Monsoons and Seasons
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What is Dry season
What is Dry season
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What is Wet Season
What is Wet Season
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Study Notes
- Earth's rotation results in day and night
Motions of the Earth
- Rotation refers to the movement of Earth on its own axis
- Revolution is the movement of Earth around the Sun
Daily Motion
- A single rotation of the Earth takes 24 hours
- One Earth day is the equivalent of 24 hours
Day and Night Explained
- The portion of Earth facing the sun experiences daylight
- The side of Earth that is facing away from the sun experiences darkness
- The Philippines experiences daytime when it is facing the Sun
- The Philippines experiences night when it is turned away from the Sun
Earth's Axial Tilt
- Earth tilts on its axis at an angle of 23.5 degrees
- The shape of the Earth is an oblate spheroid
- The tilt of Earth's axis causes the length of days and nights to be unequal
Hypothetical Effect of No Rotation
- The portion of Earth facing the sun would continuously experience daylight, leading to constant warmth
- The opposite half would remain in permanent darkness and freezing temperatures
Revolution
- Revolution is Earth's movement around the Sun
- The Moon revolves around the Earth, and the Earth revolves around the Sun
Annual Motion
- One revolution of the Earth around the Sun takes 365.25 days
- A leap year occurs every four years
The Orbit
- The orbit is an imaginary path of Earth around the Sun
- The Earth's orbital path is an ellipse
- Aphelion is the point farthest from the Sun which happens on Earth on July 5th
- Perihelion is the closest proximity to the Sun which happens on Earth on January 5th
Revolution and Seasons
- Earth's revolution around the sun creates seasons
- A season is a temporary period of change in climate
Solstices
- During the summer solstice, the North Pole tilts directly toward the Sun, receiving the greatest energy
- During the winter solstice, the North Pole is facing away from the Sun and receives the least energy
Big Idea
- The Earth revolves around the Sun as it rotates on its axis
Dry and Wet Seasons
- The dry season is characterized by cloudless and hot days and occurs between January and May
- The wet season is characterized by rainy days with thunderstorms and occurs from June to September
Factors Affecting Seasons
- Two factors affecting seasons in the Philippines are its location and the prevailing winds
- The Philippines is located near the equator
Location of the Philippines
- Due to the Philippines' location, it receives direct heat from the sun throughout the year
- This results in high temperatures and high humidity
Prevailing Winds, Monsoons
- Prevailing winds are also known as monsoons
- Monsoons act as a seasonal wind system that lasts for months
- The Northeast monsoon is called amihan and creates the dry season
- The Southwest monsoon is called habagat and brings heavy rains creating the wet season
- Northeast monsoon causes the dry season, while the southwest monsoon causes the wet season
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