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20 questions
The spinning of Earth on its axis in a day is called
perihelion
aphelion
rotation
revolution
The yearlong movement of Earth around the sun is called
aphelion
perihelion
rotation
revolution
It cause unequal heating of the earth that leads to four seasons
rotation
revolution
tilted Earth
solar radiation
The movement of Earth that causes the changing of the orientation of its axis. This movement does not affect seasons only what stars are seen at night
rotation
nutation
revolution
precession
The wobbling of Earth as it rotates caused by moon's gravity.
nutation
revolution
precession
barycenter
As moon moves around the earth, both bodies orbit around a point in the middle called
midpoint
barycenter
center point
center of gravity
All statements below are TRUE about the galaxies in the universe EXCEPT
Galaxies contain millions of stars.
Galaxies are millions of light-years apart.
Space contains several billions of galaxies
Most galaxies can be seen without a telescope.
A constellation is a
group of galaxies
group of planets
group of stars
body of air
The point where Earth is away from the Sun which happens every month of July is called
perihelion
aphelion
perigee
apogee
What is the main reason of perihelion and aphelion periods of Earth around the sun?
due to Earth rotation
due to sun's gravity
due to Earth revolution while rotating on its axis
the sun not in the middle of the elliptical path of the Earth
The period where Earth is closest to the sun is called
revolution
precession
perihelion
aphelion
Which statement is TRUE during perihelion period?
Earth's rotation is faster than when it is far from the Sun.
Earth's rotation is slower than when it is far from the Sun
The speed of Earth's revolution increases as it get closer to the Sun.
The speed of Earth's revolution decreases as it get closer to the Sun
Ocean tides are the rise and fall of sea levels caused mainly by
sun' gravity
moon's gravity
sun and moon's gravity
revolution and rotation movement of Earth
The phenomenon that occurs when Sun, Earth and moon are in straight line, and the moon is in between
solar eclipse
lunar eclipse
full moon
new moon
Spring tides occurs when Earth, sun and moon are in straight line. Which statement is TRUE during spring tides?
Tides are smaller than usual.
Tides are higher than usual.
Tides remains the same
Neap tides are moderate tides, meaning that high tides are a lower than usual. When neap tides occur?
When sun and moon are at right angles with each other.
When the moon is between sun and Earth.
When the moon is in its full moon phase
When the moon is in its new moon phase.
How does the tilt of the Earth’s axis affect the seasons?
By changing the speed of the rotation of Earth
By deflecting the harmful rays of radiation emitted by the sun
By changing the amount of direct solar radiation reaching the surface
By influencing the rate of chemical reactions occurring in the atmosphere
January is when Northern Hemisphere is at closest distance to the Sun. Why Northern Hemisphere experience winter on this month?
Sun is ejecting less solar radiation.
Humans burn less fossil fuels during winter.
Greenhouse effect is lessened during winter months.
Northern Hemisphere is receiving very little solar radiation due to Earth's tilt.
The wobbling motion of Earth on its precessional axis due to moons' gravity could affect
ocean tides
seasonal changes
length of day and night
time of the revolution around the sun
Sun is a way bigger than moon. Why moon's gravity is the main cause of ocean tides?
Earth's tilted motion
Earth is closer to the moon
Sun is closer to the moon
Earth is closer to the sun
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