History of Physics
"father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science".
Who is Galileo Galilei
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coordinate system
a system that defines the zero point of the variable you are studying
weight
How much gravity acts on an object
Tangential Speed
-describes the speed of an object in circular motion
-depends on distance
Created the 3 laws of motion
Who is Isaac Newton
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magnitude
another term given for the size of a vector
Newtons 2nd Law of Motion
the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the objects mass
-the acceleration directed toward the center of a circular path
-is due to a change in direction
Centripetal Acceleration
Was the first physicist and his theories actually gave the discipline its name. He believed that the world, although fashioned from many materials, was really built of only one element, water, called Physis in Ancient Greek. The interaction of water between the phases of solid, liquid and gas gave materials different properties.
Who is Thales
What is 4
average velocity
ratio of the change in position to the time interval during which the change occurred
an action exerted on an object which may change the objects state of rest or motion
force
Equation for Centripetal acceleration
centripetal acceleration = (tangential spead)^2 / radius of circular path
Regarded as the father of science, and certainly contributed to the history of science with his methodology and empiricism, he actually hindered the progress of physics for many millennia. He made the fatal error of assuming that mathematical theory and the natural world did not overlap, a sign of his overreliance upon empiricism.
Who is Aristotle
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position-time graph
a graph with time data on the horizontal axis and position data on the vertical axis
every action there is an equal and opposite reaction
Newton's Third Law of Motion
Each planet travels in an elliptical orbit around the sun, and the sun is at one of the focal points
1st Kepler law
best known for his eureka moment, discovering the principles of density and buoyancy whilst enjoying a bath, but his contributions to the history of physics were much more profound. His ancient physics was closely tied to his gift of the invention as he used mathematical and theoretical principles to create devices that are still common today.
Who is Archimedes
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resultant
a vector that represents the sum of 2 or more other vectors
A diagram showing all the forces acting on an object, the force's direction and its magnitude
Force Diagram
An imaginary line drawn from the sun to any planet sweeps out equal areas in equal time intervals
2nd Kepler law