Space Flashcards
What is universal gravitation?
The attraction of one mass to another.
Explain the difference between mass and weight
Weight is how heavy/light an object is
Mass is the matter contained in an object
Tides are created because….
Gravitational reaction between earth and moon
What changes in space? Your mass or weight?
Weight because it’s related to gravity
What physical phenomenon is responsible for the orbit of the planets around the sun?
Universal gravitation
Explain why does Jupiter have more moon and more impacts from comets and asteroids than Earth
It’s bigger and has stronger gravitational force and a bigger target
List the planets from closest to furthest away from the Sun.
Mercury-Venus-earth-mars- Jupiter-Saturn-Uranus-Neptune
- List the planets from largest to smallest.
Jupiter-saturn-Uranus-Neptune-earth-Venus-mars-mercury
Between which two planets is the asteroid belt located?
Mars and jupiter
List the planets inside the asteroid belt.
Mars-mercury-Venus-earth
- The planets inside the asteroid belt are also known as the
Terrestrial planets
List two characteristics of the planets located inside the asteroid
Made of rock and smaller
- List the planets outside the asteroid belt.
Jupiter-Saturn-Uranus-Neptune
The planets outside the asteroid belt is also known as the
Gas giants
List two characteristics of the planets located outside the asteroid belt.
Made of gas and larger
What are natural satellites?
Moons that revolve around a planet
- Which planet in our solar system has the most number of moons?
Jupiter
Which two planets in our solar system do not have at least one natural satellite?
Mercury and Venus
Pluto is considered a
Dwarf planet
All planets in the solar system are named after Roman God & Goddesses except
Earth
- What is a comet? Describe the main parts of a comet.
A ball of ice, rock, dust and gas. Main parts are the nucleus (rock+ice) and the halo(gas+dust)
(TRUE/FALSE) The tail of the comet is blown by the solar wind. It always extends away from the Sun.
True
(TRUE/FALSE) The halo and tail of a comet are formed only when the comet is near the Sun.
True
What are the polar auroras?
Light in the poles. Northern+Southern hemisphere
How are polar auroras created?
Solar wind colliding with earths magnetic field
The northern light is known as the
Aurora borealis
the southern light is known as the
Aurora australis
Which layer of the atmosphere do polar auroras occur?
Thermosphere
(TRUENFALSE) Polar auroras are visible everywhere on Earth.
False
Explain the difference between Meteoroids, Meteor, and Meteorites.
Meteoroids are solid debris coming from the solar system
Meteors are when it enters the earths atmosphere
Meteorites are when it hits the ground
What is an effect of a meteorite hitting the ground?
Can create craters/astroblemes
What are astroblemes?
Physical scars caused by the impact of ancient meteorites also known as impact craters
List the following from largest to smallest.
Meteor
Meteoroid
Meteorite
Asteroid
Asteroid
Meteoroid
Meteor
Meteorite
