Space Flashcards
What is cosmology?
It is the study of the universe
What is astromomy
It is the science that deals with the universe beyond the earths atmosphere
What is a star
It is a celestial body that generates its own light and heat
What is a planet
A celestial body that orbits a star
What does cleared the region mean?
It means it is easliy the largest celestial object in the region that it orbits.
How many planets in our solar system
8 planets
What is a moon
A natural satelite of a planet
What is an asteroid
Its a small rocky body orbiting the sun
What is a comet
A dusty snowball which obits the sun
What is a galaxy
A large system of stars held together by gravity and isolated from other systems
What is gravity
It is the glue of the universe.
How many days does it take for the moon to orbit the earth
28 days
How amny days does it take earth to orbit the sun?
365 days
How much of the earth is facing the sun at any one time
Half of the earth
Why do seasons occur
They occur due to the earths axis being tilted as it rotates orbiting the sun
Does the earths distance from the sun have any effect on seasons
No
Does the moon produce its own light
No, we can see the moon because it is reflecting the suns light towards earth
What is a lunar eclipse
When the earth comes between the sun and the moon. The moon cannot be seen
What is a solar eclipse
When the moon comes between the sun and the earth. The sun cannot be seen
What are the benefits of space exploration?
Satelites, scratch proof glass, battery technology and memory foam
What are the disadvantages of space exploration
Explosion, burning up, phychological effects, space debris
