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Moon's Phases 2
(Jael)
Question | Answer |
---|---|
Who thought all of the objects in space orbited around the Earth? | Ptolomy |
The model where the Earth is at the center of the system of planets is called _____. | Geocentric |
Who proposed the theory that the objects in space revolve around the Sun? | Copernicus |
The model where the sun at the center of the solar system is called _____. | Heliocentric |
Who discovered that the planets orbited the sun in an elliptical shape? | Kepler |
Who used a telescope and observed the 4 largest moons of Jupiter and the phases of Venus? | Galileo |
When an object in motion stays in motion and an object at rest stays at rest unless acted on by an outside force | Inertia |
The force that pulls things down or toward another object | Gravity |
What is the name of the scientific theory that explains the formation of the universe? | Big Bang Theory |
What evidence is used to support the Big Bang Theory? | The galaxy is expanding (getting larger). Cosmic background radiation |
What is the name and type of galaxy that we live in? | Milky Way Galaxy Spiral galaxy |
Where is our solar system located in the Milky Way Galaxy | On the outside edge of a spiral arm. |
Name the characteristics of the INNER PLANETS. (Terrestrial Planets) | Solid, rocky surface (terrestrial) Small size High density Thin or no atmosphere (except Venus) Close to the sun so they revolve quickly (shorter years). |
Name the characteristics of the OUTER PLANETS. (Jovial Planets) | Mostly gas (hydrogen and helium) Massive Low density Thick atmosphere Rings Far from the sun so they revolve slowly (long years) |
What are the two forces that keep the planets in orbit around the sun? | Gravity and inertia |
What would happen to the planets if the sun did not have a gravitational pull on the planets? | The planets would continue moving (inertia) out into space and away from the sun. |
What would happen if the planets stopped moving around the sun (no inertia)? | The gravitational pull of the sun would pull the planets into the sun causing them to collide. |
What two factors affect the amount of gravitational pull between two objects? | Mass – the greater the amount of mass, the greater the gravitational pull Distance – the smaller the distance between the objects, the greater the gravitational pull |
What is the composition of a comet? | Ice, rock and dust |
Why does a comet have a tail? | As the comet approaches the sun, the ice begins to melt and blows away from the sun. |
What is the difference between an asteroid and a meteoroid? | An asteroid is larger than a meteoroid. |
Where are asteroids and meteoroids found? | In space |
What is a meteoroid called when it comes through our atmosphere? | Meteor |
What is a meteoroid called when it hits the Earth’s surface? | Meteorite |
Why is life possible on Earth? | Temperature range makes life possible. Presence of water Breathable atmosphere (nitrogen and oxygen) |
What are the phases of the moon starting with the moon between the sun and the earth? | New Moon Waxing Crescent 1st Quarter Waxing Gibbous Full Moon Waning Gibbous 3rd Quarter (Last Quarter) Waning Crescent New Moon (repeats itself) |
The earth ____________ on its axis once every _________. | Rotates · 24 hours |
The earth ______ around the sun. This takes _________. | · Revolves · 365 ¼ days |
Day and night are caused by _____________. | Earth’s rotation on its axis. |
Seasons are caused by __________________. | The tilt of Earth’s axis as it revolves around the sun. |
The phases of the moon are caused by_________. | The moon revolving around the earth. |
What causes the phases of the moon? | The relative position of the earth, moon, and sun. |
What order are the earth, moon and sun in for a lunar eclipse to occur? | Sun, earth, moon |
What order are the earth, moon and sun in for a solar eclipse to occur? | Sun, moon, earth |
What is the difference between a rotation and a revolution? | Rotation: spinning or twirling on its axis. Revolution: traveling around a larger object. |