Motion in Space
What is rotation?
BONUS: How long does rotation take?
Spinning on its axis
1 day/24 hours
If a planet has a very large mass, how much gravity will it have?
A LOT
Bonus: What type of moon phase would you have?
Sun, Earth, Moon
Full
What number planet is Mars?
What piece of technology has revolutionized the study of space?
Telescope
The length of a day on Earth is based on
The Earths rotation
Define orbit?
The path a planet takes around a center.
During a full moon, how much of the moon is lit at anytime.
Half 50%
What is the biggest planet in our solar system?
Jupiter
Place these in the following order from smallest to largest.
Solar system, planet, universe, galaxy
Planet, solar system, galaxy, universe
Each time the Earth orbits the Sun another ____________ has passed.
A year
What would happen to the force of gravity if you increased the mass a planet?
Gravity would increase.
What does it mean if the moon phase is getting larger each day?
Waxing
What are 3 characteristics of outer planets.
- Rings
- Big
- Slow rotation
- Made of gas
What type of star is the Sun?
Medium sized yellow star
What does revolution mean?
What does it cause?
To go around another object
Seasons
What would happen if the Sun's gravity suddenly stopped pulling on the Earth?
Earth would fly off into space.
What moon phase would you see if there was a solar eclipse?
List all of the planets in order from the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Density = mass/volume
80/40 = 2 g/mL
If Earth rotated faster, what would become shorter?
Days would be shorter.
What causes the moon to stay in orbit around the Earth?
Gravity + Inertia
How would you describe why we see different phases of the moon?
What is 1 Au?
Bonus: What theory states that Earth is the center of the solar system
The distance from Earth to the Sun
Bonus: Geocentric
Seasons