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An oval shaped orbit.
Kepler's 1st Law: What is an ellipse?
The planet has a longer orbit.
Kepler's 3rd Law: What happens to a planet's orbit when the planet is farther from the sun?
It is in motion, and continues in motion forever until a force moves it.
Newton's 1st Law: What happens when an object at rest is pushed or pulled by a force.
Newton's 1st Law: What is friction?
When two objects rub against each other. When the friction increases, the objects slow down when in motion.
Newton's 2nd Law: The more massive the object, the more [blank] it has.
For every action, there is an equal and opposite reaction.
Newton's 3rd Law: "For every [blank], there is an [blank] and [blank] reaction."
The marble on the end moved in the opposite direction as the initial marble.
N's 3rd Law: What happened [in the lab] when the one marble (force) hit the rest of the marbles?
What is inertia?
An object wants to keep doing what it's doing. [An object at rest wants to stay at rest, and object in motion wants to stay in motion.]