Forces in our system
These two factors are what determine the strength of gravity.
What are mass and distance?
This is what makes up over 99% of our solar system
What is empty space?
These are the two factors that are similarities between inner planets
What are rocky and smaller?
One trip around the sun is called this.
What is a revolution?
This planet has the fastest orbital speed of all the planets.
What is Mercury?
What is it is fastest?
These are two similar factors that all outer planets share.
What are large and gaseous?
Describe a transit
What is when a celestial body (planet) goes in between a star and another planet?
These are the two forces that cause our orbit of the sun
What are gravity and initial velocity
Fill in the blank: Venus appears bigger when it is _______ to Earth.
What is closer?
As the planets get further from the sun the space between the planets does this.
What is increase?
Mercury transits the sun from Earth's perspective. This tells us that ...
What is its orbit is between the sun and Earth or its orbit is closer to the Sun than Earth's orbit?
If the mass of the sun was tripled, this would happen to orbital speed of all planets.
What is increase?
Jupiter is farther than the Earth from the sun. Because of this when could we see Jupiter?
What is at midnight?
This is when we can't see the other planets in our solar system.
When they are in front or behind the sun?
1 AU (astronomical unit) represents this.
What is the distance between the sun and Earth?
If the mass of a planet increased or the distance two planets from each other decreased, what would happen to the gravity?
What is it would increase?
There are two main factors that determine if a model is to scale: Name them.
What are size of the planets and spacing of the planets?
These are the steps in the formation of our Solar System. 1. Planets, asteroids, and comets form, 2. Sun forms from remnants of other stars, 3. Planetesimals form due to gravity, 4. Gas and dust form a disk around the sun, 5. Orbits stabilize the way they are today. Order them appropriately
What is 2, 4, 3, 1, 5?
We see a new planet has joined the solar system. It is 1.5 AU from the sun. Is the earth visible at midnight for that planet? Why or why not?
What is no, because earth would be inside and you can only see planets further from the sun than your location at midnight?