Planets
How many Planets in the solar system
8
What Does the root word Geo mean?
Earth
The attraction between two objects is known as what?
Gravity
What is our galaxy called?
Milky way
Ptolemy
Proposed that Earth was the center of the solar system.
What is the correct order of the planets?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What does the root word Helio mean?
Helium/ Sun
What is volume
How much space is in an object
The milky way is what type of Galaxy?
Spiral
Copernicus
Proposed that the sun was the center of the solar system.
What is located between Mars and Jupiter?
Asteroid Belt
What is the geocentric model
The earth is the center of the solar system
What is the mass of an object?
How much matter is in an object
The life cycle of a star begins with a cloud of gas and dust called a?
Nebula
Kepler
Discovered that the orbits where not circular but elliptical.
What separates the inner planets from the outer ones?
Asteroid Belt
What is the heliocentric model
The Sun id the center of the solar system
When an object wants to continue in the motion it is already traveling in is called?
Inertia
What is it called when a star explodes?
Super Nova
Galileo
Worked with refracting telescopes to learn more about the solar system like the moons on Jupiter
What are 2 things a planet needs to be habitable?
Rocky terrain temp average 15 degrees C.
Which model do we live under now?
Heliocentric
What would happen to the orbit path of the earth if the sun did not exist?
Answers vary
The distance between stars is typically measured by what?
Light years
Newton
His ideas of gravity and inertia helped us understand the orbit of the planets.