Gravity
This is the first main concept of gravity.
What is "gravity is the attractive force between all objects in the universe"?
This is the term for anything that is thrown or shot through air (or space).
What is a projectile?
The early Greeks thought this was the center of the solar system.
What is the Earth
The term we use in class when talking about the relative size of things.
What is scale?
This is the region in the solar system that separates the inner planets from the outer planets.
What is the asteroid belt?
This is the second main concept of gravity.
What is "gravity is what effects all of the motion in space"?
A projectile following a curved path has these two forms of motion.
What are horizontal and vertical motion?
This is the term for the model of the solar system in which the sun is the center.
What is heliocentric?
This is what scientists use to measure distances among the objects in the solar system.
What is an Astronomical Unit?
This is another term for terrestrial planets.
What is rocky planets?
This is the third main concept of gravity.
What is "mass and distance impact the force of gravity"?
This is the path of a projectile when it is thrown with more vertical force than horizontal force.
What is more curve?
This is how old scientists believe the solar system is.
What is 4.6 billion years?
This object contains 99.86% of the mass in our solar system.
What is the Sun?
This is the hottest planet in the solar system.
What is Venus?
If the mass of the Earth were to decrease it would cause this to happen to your weight.
What is a decrease in your weight?
This is the path of a projectile when it is thrown with more horizontal force than vertical force.
What is less curve?
These are objects that orbit the sun in large, oval shaped orbits and have glowing tails of gas and dust.
What are comets?
What is Jupiter and Neptune?
This planet has no atmosphere and a year that lasts 88 Earth days.
What is Mercury?
This main concept of gravity best explains why the Moon orbits the Earth instead of the Sun.
What is the third main concept of gravity?
This is what happens when a projectile is able to fall around an entire world and continue moving without hitting the surface.
What is entering orbit?
The contracting cloud of heated material from the early solar system eventually triggered this process, which lead to the formation of the sun.
What is nuclear fusion?
It takes this long for sunlight from the sun to reach Neptune.
What is four hours?
This planet has four large moons among its 79 that are known as the Galilean moons
What is Jupiter?