Newton realized that the same laws that govern motion here on earth also govern motion here.
What is "in space"?
100
Newton's new telescope was called by this name.
What is "a reflecting telescope"?
100
Newton believed that this entity had to act continually to keep the universe running smoothly.
Who is God?
100
Guillaume Amontons developed this, something often used in science, to help people understand how he believed friction worked.
What is "a model"?
100
The wheels of a car use this to help the car move.
What is "friction"?
200
An object's momentum depends on both of these.
What are its mass and velocity?
200
Newton replaced the lenses inside the old style telescopes with these in his new telescope.
What are "mirrors"?
200
In order to get two surfaces to slide against one another, you have to overcome this force.
What is "friction"?
200
In science, this is often used to help us understand something we can't see very well.
What is "a model"?
200
When water was added to the water bottle sitting on top of the cd case in our experiment, we had to add (more or less) pennies than we needed when there was less water in the bottle.
What is "more"?
300
Since velocity always has a direction, this always has a direction, too.
What is momentum?
300
In a collision not affected by outside influences, this always remains the same.
What is "momentum"?
300
Natural philosophers during Newton's time thought that his Universal Law of Gravity seemed a bit too much like this.
What is "magic"?
300
Models in science have both benefits, and these.
What are "limitations"?
300
This is the purpose of treads on the bottom of car tires.
What is "to increase friction when the road is wet"?
400
In the coin collision experiment in class, the shooter coin and the bottom coin in the stack hit each other with an equal and opposite force, fulfilling this law of motion.
What is Newton's Third Law?
400
In our marble track experiment, the momentum of the marbles before the collision was this compared to the momentum of the marbles after the collision.
What is "the same"?
400
Natural philosophers of Newton's time thought that in order for one object to be able to exert a force on another object, they had to be this.
What is "physically connected"?
400
In Amontons' model of friction, he believed that these tiny things in the surface of the object were the cause of friction.
What are "irregularities (or bumps and grooves)"?
400
Friction can sometimes prevent motion, but in the case of wheels on the ground, friction can actually do this.
What is "help motion happen"?
500
After the coins collided in our experiment in class, the FORCE applied to the shooter coin by the coins in the stack made the shooter coin ACCELERATE in a different direction, fulfilling this law of motion.
What is Newton's Second Law?
500
A heavy ball collides with a lighter ball that was sitting still. The velocity of the lighter ball after the collision will have to be this, compared to the velocity of the heavier ball before the collision.
What is "higher (or faster)"?
500
Newton's new telescope used mirrors that reflected light to replace lenses that did this to light in the old telescopes.
What is "refracted"?
500
The amount of friction that has to be overcome to get an object to slide depends on these two things.
What are "the nature of the surfaces and the weight of the object"?
500
In our experiment with the water bottle and cd case, the pennies in the bag were overcoming this force.
What is "friction between the cd case and the table"?