#1
Which phenomenon is responsible for the changing seasons on Earth?
Axial tilt
ExplanationAxial tilt causes varying exposure to the Sun, leading to seasons on Earth.
#2
What is the name of the phenomenon when the Earth is closest to the Sun in its elliptical orbit?
Perihelion
ExplanationPerihelion is the point in Earth's orbit where it is closest to the Sun.
#3
Which hemisphere experiences summer when the North Pole is tilted away from the Sun?
Southern Hemisphere
ExplanationThe Southern Hemisphere experiences summer when the North Pole is tilted away from the Sun.
#4
What is the primary reason for the Earth's axial tilt?
Impact from celestial bodies
ExplanationThe Earth's axial tilt is primarily caused by impacts from celestial bodies during its formation.
#5
What is the primary factor causing the changing length of daylight throughout the year?
Axial tilt
ExplanationAxial tilt is the main factor causing variations in daylight length throughout the year.
#6
During which equinox does day and night have nearly equal duration worldwide?
Spring equinox
ExplanationDuring the Spring equinox, day and night have approximately equal length globally.
#7
What is the name of the imaginary line around which Earth rotates, causing day and night?
Axis
ExplanationThe Earth's rotation occurs around its axis, creating day and night cycles.
#8
Which celestial body's gravitational pull primarily influences the Earth's tides?
Moon
ExplanationThe Moon's gravitational pull is the main factor affecting Earth's tides.
#9
What causes the phenomenon known as the 'Midnight Sun' in polar regions?
Axial tilt
ExplanationAxial tilt results in the Midnight Sun phenomenon in polar regions, with continuous daylight during certain times.
#10
What is the name of the point in the sky directly above an observer?
Zenith
ExplanationThe Zenith is the point in the sky directly above an observer.
#11
What is the astronomical event that occurs when the Sun is directly above the Tropic of Cancer?
Summer solstice
ExplanationThe Summer solstice happens when the Sun is directly over the Tropic of Cancer, marking the longest day of the year.
#12
In the Southern Hemisphere, during which season does the Summer Solstice occur?
Winter
ExplanationThe Southern Hemisphere experiences the Summer Solstice during its winter season.
#13
During which phase of the Moon can a lunar eclipse occur?
Full Moon
ExplanationA lunar eclipse can occur during a Full Moon when the Earth is positioned between the Sun and the Moon.
#14
What is the term for the point in an orbit where a planet is farthest from the Sun?
Aphelion
ExplanationAphelion is the farthest point in a planet's orbit from the Sun.
#15
What is the term for the point in an orbit where a satellite is closest to the Earth?
Perigee
ExplanationPerigee is the point in a satellite's orbit closest to the Earth.