Newton’s Laws Review
Aristotle classified motion into two kinds:
1. ______________ motion = motion back to an object’s natural place.
2. ______________ motion = man-made motion.
The motion of the heavens was different. Aristotle called it __________________ motion.
Aristotle said everything was made up of ________ ________________:
1.
2.
3.
4.
____________________ was the first to conclude the Earth is not the ____________ of the ________________.
________________ said you could ____________________ an experiment by looking at just the main idea.
Galileo also said that when you roll a ball down one incline, it will roll up another incline to ____________ the same ____________.
The difference in height he attributed to ________________.
Expanding on this idea, Galileo said if the ball did not roll up another incline but onto a perfectly horizontal surface, it will just roll ______________.
This means that you need ____ __________ to keep something moving!
R________ D________________ actually coined the word ______________. He liked to ask, “What if you could turn off ______________?”
Newton wrote the __________________, which was the first ______________ ________.
In it, he included _____ laws of motion.
They are:
1. Law of ______________
Bodies at ________ tend to stay at ________.
Bodies in ____________ tend to stay in ____________.
These rules hold unless an ______________ __________ acts upon the body.
Basically, this says f____________ change v___________________ (cause a________________________).
2. Law of ________________________
Acceleration is ____________________ proportional to mass and ____________________ proportional to __________.
This can be ______________ly stated as :
Basically, this says the ________ __________ as the Law of Inertia. The Law of Acceleration is qu____________________ while the Law of Inertia is qu____________________.
3. Law of __________ __________
For every ____________, there is an __________ and ________________ ________________.
This means, forces always come in __________.
A force = a ________ or a ________
A force also = an ______________________ between two objects
Mass is a ______________________ property of an object. We say this because it does not depend on the object’s ______________________.
Weight is different. Weight is the ____________ of ______________ on an object.
Weight depends on _____________, but ________ is independent of ________________.
Volume is different still. Volume is the amount of __________ an object takes up.
An example of something with big mass but small volume is:
An example of something with small mass but big volume is:
The net force is the ______ force an object __________. It is the r__________________ of all the forces on the object.
If mass = 10. kg and net force = 35 N, the acceleration = _______________.
______________ is a force that ______________ motion.
The three kinds of friction are:
1.
2.
3.
__________________ of _______________ is the number that describes the roughness or smoothness of a surface.
Rough surfaces have µ’s closer to __________.
Smooth surfaces have µ’s closer to __________.
There are two kinds of sliding friction:
1.
2.
Kinetic friction will be _______ ________ or equal to static friction, because it’s easier to _________ something moving than to __________ something moving.
Sliding friction also depends on ______________ __________ , as seen in the equation:
________________ is the concentration of force.
Pressure is dependant on ______________ ________ and force, as you can see from the equation:
Pressure is measured in ___________, which is really a nickname for _______________ per ____________ ___________.
All objects free-fall the same because they have equal f____________ to m_______ ratios.
Air resistance changes the a_____________________ of a falling object.
When air resistance = ____________, we get _______________ ______________, during which acceleration = ________