Earth's Shape and Motions Quiz
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Earth's Shape and Motions Quiz

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Questions and Answers

What term defines the shape of the Earth as slightly flattened at the poles and bulging at the center?

  • Ellipsoid
  • Sphere
  • Oblate
  • Geoid (correct)

    • What causes the occurrence of day and night on Earth?

  • The tilt of the Earth's axis
  • The Earth's rotation on its axis (correct)
  • The revolution of the Earth around the Sun
  • The distance of the Earth from the Sun

    • How long does it take for the Earth to complete one full rotation on its axis?

  • 12 hours
  • 24 hours (correct)
  • 30 hours
  • 36 hours

    • What line divides the Earth into the Northern and Southern hemispheres?

    <p>Equator</p> Signup and view all the answers

    At what angle is the Earth's axis tilted?

    <p>23 ½°</p> Signup and view all the answers

    Which part of the Earth receives the maximum intensity of sunlight?

    <p>Equator</p> Signup and view all the answers

    What movement of the Earth is referred to as the Earth moving around its axis?

    <p>Rotation</p> Signup and view all the answers

    What is the primary reason the intensity of the Sun's rays varies at different places on Earth?

    <p>Curvature of the Earth</p> Signup and view all the answers

    Which model aids in understanding the movements of the Earth?

    <p>Globe</p> Signup and view all the answers

    What occurs when the Earth rotates towards the Sun?

    <p>Day</p> Signup and view all the answers

    What causes seasons on Earth?

    <p>The tilt of the Earth's axis and revolution around the Sun</p> Signup and view all the answers

    How long does it take the Earth to complete one revolution around the Sun?

    <p>365 days and 6 hours</p> Signup and view all the answers

    Why does the Northern Hemisphere experience summer while the Southern Hemisphere experiences winter?

    <p>The North Pole tilts towards the Sun while the South Pole tilts away</p> Signup and view all the answers

    What is a leap year?

    <p>A year with 366 days</p> Signup and view all the answers

    During which months does spring occur in the Northern Hemisphere?

    <p>February to April</p> Signup and view all the answers

    What happens every four years concerning the calendar year?

    <p>An extra day is added to form a leap year</p> Signup and view all the answers

    What is the effect of the Earth's revolution around the Sun on seasons?

    <p>Seasons repeat at almost the same time each year</p> Signup and view all the answers

    Which hemisphere experiences winter from May to July?

    <p>Southern Hemisphere</p> Signup and view all the answers

    What type of rays does the Southern Hemisphere receive during its summer?

    <p>Direct rays</p> Signup and view all the answers

    What is the main reason for the variation of temperatures across different parts of the Earth?

    <p>Distance from the Sun and angle of rays</p> Signup and view all the answers

    What is the term used to describe Earth's shape as slightly flattened at the poles?

    <p>Geoid</p> Signup and view all the answers

    Why do we see the sun rising in the East?

    <p>Because the Earth rotates from West to East.</p> Signup and view all the answers

    What line divides the Earth into two equal hemispheres?

    <p>The Equator</p> Signup and view all the answers

    How does the Earth's curvature affect temperature?

    <p>Places closer to the Equator are hotter due to direct sunlight.</p> Signup and view all the answers

    What imaginary line acts as the axis on which the Earth rotates?

    <p>The Earth's axis.</p> Signup and view all the answers

    What causes the differences in intensity of sunlight throughout the day?

    <p>The slanting of the Sun's rays at different times.</p> Signup and view all the answers

    How long does it take for the Earth to complete one full rotation?

    <p>Approximately 24 hours.</p> Signup and view all the answers

    What effect does the Earth's rotation have on the winds and oceans?

    <p>It causes winds and movements in the oceans.</p> Signup and view all the answers

    How do the tilt of the Earth's axis and its revolution contribute to the changing seasons?

    <p>The tilt of the Earth's axis causes different parts of the Earth to receive varying intensities of sunlight, while the revolution around the Sun ensures that these changes occur seasonally.</p> Signup and view all the answers

    What happens during February to April in the context of seasons in the Northern Hemisphere?

    <p>From February to April, the Northern Hemisphere experiences spring while the Southern Hemisphere experiences autumn.</p> Signup and view all the answers

    Why do seasons occur at the same time each year?

    <p>Seasons recur at the same time each year because the Earth completes one full revolution around the Sun in approximately one year.</p> Signup and view all the answers

    Describe the seasonal changes from May to July in the Northern Hemisphere.

    <p>From May to July, the Northern Hemisphere experiences summer, while the Southern Hemisphere experiences winter.</p> Signup and view all the answers

    What are the main seasons experienced in the Southern Hemisphere when the Northern Hemisphere is in winter?

    <p>While the Northern Hemisphere is in winter, the Southern Hemisphere experiences summer.</p> Signup and view all the answers

    What is the significance of a leap year in relation to the Earth's revolution?

    <p>A leap year, which has 366 days, accounts for the extra 6 hours it takes the Earth to complete its revolution around the Sun each year.</p> Signup and view all the answers

    What occurs during the months of August to October in the Northern Hemisphere?

    <p>The Northern Hemisphere experiences autumn from August to October, while the Southern Hemisphere experiences spring.</p> Signup and view all the answers

    The Earth is slightly flattened at the poles and bulging at the ______.

    <p>center</p> Signup and view all the answers

    The movement of the Earth on its axis is called ______.

    <p>rotation</p> Signup and view all the answers

    The line that separates the Northern Hemisphere from the Southern Hemisphere is called the ______.

    <p>equator</p> Signup and view all the answers

    The Earth's axis is tilted at an angle of ______ degrees.

    <p>23 ½</p> Signup and view all the answers

    As the Earth rotates, the part facing the Sun experiences ______.

    <p>day</p> Signup and view all the answers

    The intensity of the Sun's rays is maximum at the ______.

    <p>Equator</p> Signup and view all the answers

    The Earth completes one full rotation in approximately ______ hours.

    <p>24</p> Signup and view all the answers

    Places lying closer to the equator are generally ______ than those closer to the poles.

    <p>hotter</p> Signup and view all the answers

    The movement of the Earth around the Sun is called ______.

    <p>revolution</p> Signup and view all the answers

    The extra day added to the calendar every four years during a leap year occurs in the month of ______.

    <p>February</p> Signup and view all the answers

    Seasons are caused mainly because of the revolution of the Earth and the tilt of the Earth's ______.

    <p>axis</p> Signup and view all the answers

    From May to July, the Northern Hemisphere experiences ______.

    <p>summer</p> Signup and view all the answers

    The cycle of seasons repeats almost at the same time of the year because the Earth completes one ______ around the Sun in one year.

    <p>revolution</p> Signup and view all the answers

    When the South Pole is inclined towards the Sun, the Southern Hemisphere experiences ______.

    <p>summer</p> Signup and view all the answers

    In February to April, the Northern Hemisphere experiences ______, while the Southern Hemisphere experiences autumn.

    <p>spring</p> Signup and view all the answers

    The Earth is shaped like a perfect sphere.

    <p>False</p> Signup and view all the answers

    The rotation of the Earth causes day and night.

    <p>True</p> Signup and view all the answers

    The equator divides the Earth into Eastern and Western hemispheres.

    <p>False</p> Signup and view all the answers

    The Earth's axis is tilted at an angle of 23 ½°.

    <p>True</p> Signup and view all the answers

    Places closer to the poles generally receive more direct sunlight than those near the equator.

    <p>False</p> Signup and view all the answers

    The Earth completes one revolution around the Sun in approximately 365 ½ days.

    <p>True</p> Signup and view all the answers

    During November to January, the Northern Hemisphere experiences summer.

    <p>False</p> Signup and view all the answers

    February to April marks spring in the Northern Hemisphere.

    <p>True</p> Signup and view all the answers

    Seasons are caused primarily by the revolution of the Earth and the tilt of the Moon's axis.

    <p>False</p> Signup and view all the answers

    In a leap year, February has 29 days.

    <p>True</p> Signup and view all the answers

    Match the following terms related to the Earth's shape and structure:

    <p>Geoid = Earth-like shape Equator = Dividing line between hemispheres Axis = Imaginary line for rotation Globe = Model of the Earth</p> Signup and view all the answers

    Match the following types of movements of the Earth:

    <p>Rotation = Movement on its axis Revolution = Movement around the Sun Tilt = Angle of the Earth's axis Curvature = Effect on sunlight intensity</p> Signup and view all the answers

    Match the following phenomena with their causes or effects:

    <p>Day and Night = Rotation of the Earth Seasons = Tilt of the Earth's axis Temperature variation = Curvature of the Earth Sunrise in the East = Earth's rotation direction</p> Signup and view all the answers

    Match the following statements with their corresponding facts:

    <p>Northern Hemisphere = Experiences summer when tilted towards the Sun Southern Hemisphere = Experiences winter when Northern Hemisphere is in summer Equator = Receives maximum sunlight Poles = Location of extreme temperature variations</p> Signup and view all the answers

    Match the following durations with their corresponding Earth's movement:

    <p>One rotation = Approximately 24 hours One revolution = One year Days in a leap year = 366 days Spring months (Northern Hemisphere) = February to April</p> Signup and view all the answers

    Study Notes

    Earth's Shape and Motions

    • The Earth is a geoid, a slightly flattened sphere bulging at the equator.
    • A globe is a model of the Earth, representing its shape with an axis.
    • The Earth has an axis connecting the North and South Poles.
    • An imaginary line called the Equator divides the Earth into the Northern and Southern Hemispheres.

    Earth's Rotation

    • Rotation is the Earth spinning on its axis.
    • Rotation causes day and night.
    • The part of the Earth facing the Sun experiences day, while the other half experiences night.
    • The Earth rotates from west to east.
    • One rotation takes approximately 24 hours (one day).
    • Rotation also causes winds and ocean currents.
    • The axis of rotation is tilted at 23.5 degrees.

    Earth's Revolution

    • Revolution is the Earth orbiting the Sun.
    • The Earth takes 365.25 days to complete one revolution.
    • The Earth's revolution is responsible for the seasons.
    • The Earth's orbit is not a perfect circle; it's slightly elliptical.
    • The tilt of the Earth's axis causes the variation in the intensity of sunlight received by different parts of the globe, leading to seasons.

    Cycle of Seasons

    • The tilt of Earth's axis (23.5 degrees) is the primary cause of seasons.
    • Seasons are caused by the changing angle of sunlight on Earth's surface as it orbits the Sun.
    • The Earth's axis points in the same direction as it orbits the Sun.
    • Different parts of the Earth experience varying amounts of direct sunlight throughout the year, influencing temperature changes.
    • The Earth's tilted axis, combined with its revolution around the Sun, creates the cycle of seasons.

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