Earth 🌏 Flashcards
How long does it take for a complete orbit around the sun?
365 days
Explain the day and night in terms of the rotation of the earth about its axis
One whole day has day and night in it. When a part of earth is facing the sun, that part of the earth is daytime, the other part would be night time because it’s facing space.
time taken for a complete rotation around earth axis
24 hours
Surface of the moon.
covered with dead volcanoes, impact craters, and lava flows
How long does it take for a complete orbit around the earth from moon?
27 days 7 hours and 43 minutes
Phases of the moon
new Moon. waxing crescent Moon. first quarter Moon. waxing gibbous Moon. full Moon. waning gibbous Moon. last quarter Moon. waning crescent Moon.
Phases of the moon around the earth and earth around the sun.
29.5 days
How does the phases occur?
The sunlight reveals the moon.
How does the gravitational pull create tides?
The Sun causes tides just like the moon does, although they are somewhat smaller. When the gravitational pull of the Sun and moon are combined, you get more extreme high and low tides
Solar and lunar eclipse in terms of shadows and movement of earth moon and sun
During lunar eclipse, earth comes in the middle of the sun and moon, blocking the sunlight to get to the moon. During solar eclipse, the moon comes in the middle of the sun and earth, blocking a little bit of sunlight to earth.
Development of the universal model.
geocentric model, any theory of the structure of the solar system in which Earth is assumed to be at the centre of it all. The most highly developed geocentric model was that of Ptolemy of Alexandria.
How did the space tools affect space exploration?
It helps us learn more new things.
Difference of revolution and rotation of earth
Rotation is earth rotation around itself and revolution is earth going around the sun.
Why do we experience day and night?
Day and night are due to the Earth rotating on its axis, taking only one day!
Why does the sun rise in the east and set in west?
As the Earth rotates toward the east, it looks like the sun is moving west. As the Earth rotates, different locations on Earth pass through the sun’s light.
