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Simple harmonic motion
Simple harmonic motion

... Simple harmonic motion (SHM) is that motion in which a body moves back and forth over a fixed path, returning to each position and velocity after a definite interval of time. The frequency (rev/s) is the reciprocal of the period (time for one revolution). ...
Ninth Grade Science Standards Content Standard: Performance
Ninth Grade Science Standards Content Standard: Performance

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Force Diagram

... Net Force (Unbalanced Force): Concept Development: How can we tell how hard something is pushed when two objects are pushing on it? The Boyfriend Example: When Ms. Eibling was in high school she went out driving with her boyfriend after buying her first car for $500. The car stalled out and she pul ...
ch. 5-2 forces powerpoint
ch. 5-2 forces powerpoint

... unbalanced force on the apple made the apple fall. • He also reasoned that an unbalanced force on the moon kept the moon moving around the Earth. • He proposed that these two forces are actually the same force––gravity. ...
Physics Midterm Review #1
Physics Midterm Review #1

... object is inversely proportional to the net force acting on it. 3. True/False The speed of an object dropped in the air will continue to increase without limit until it strikes the ground. 4. The acceleration produced by a net force on an object is a. Directly proportional to the magnitude of the ne ...
Question
Question

... • When you ride a bicycle, you don’t fall off the bike easily. But when you stop, is it very difficult to maintain your balance. Why? • When you make a turn, you tip the bicycle to the side. Why doesn’t the bicycle just fall to the ground? • If you are riding a motorcycle real fast, then you can tip ...
gravitational fields
gravitational fields

... • When you ride a bicycle, you don’t fall off the bike easily. But when you stop, is it very difficult to maintain your balance. Why? • When you make a turn, you tip the bicycle to the side. Why doesn’t the bicycle just fall to the ground? • If you are riding a motorcycle real fast, then you can tip ...
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Technology: Shaping Our World Chapter 8. Machines—Terms and

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Summary Notes - Cathkin High School

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PHY430 - Lecture 4 - Newton`s Laws

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PHYS219 Fall semester 2014 - Purdue Physics

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... • A star explodes and loses half its mass. Its radius becomes half as large. Find the new gravitational field strength on the surface of the star in terms of the original one. ...
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Chapter 16: Electric Forces and Fields (48 pts) Name Read Chapter

Force Vectors - Rutgers Physics
Force Vectors - Rutgers Physics

... force and its direction. (The masses and angles have been chosen to make this easy.) Second, add the vectors on the diagram and draw the vector of the balancing force. Take the direction of the 0° pulley to be the x-axis and the 90° direction to be the y-axis. How well do your two calculations agree ...
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Newton`s Third Law

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L24_A2_2009_10_CoulombsLaw

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Gravity

Gravity or gravitation is a natural phenomenon by which all things with mass are brought towards (or 'gravitate' towards) one another including stars, planets, galaxies and even light and sub-atomic particles. Gravity is responsible for the complexity in the universe, by creating spheres of hydrogen, igniting them under pressure to form stars and grouping them into galaxies. Without gravity, the universe would be an uncomplicated one, existing without thermal energy and composed only of equally spaced particles. On Earth, gravity gives weight to physical objects and causes the tides. Gravity has an infinite range, and it cannot be absorbed, transformed, or shielded against.Gravity is most accurately described by the general theory of relativity (proposed by Albert Einstein in 1915) which describes gravity, not as a force, but as a consequence of the curvature of spacetime caused by the uneven distribution of mass/energy; and resulting in time dilation, where time lapses more slowly in strong gravitation. However, for most applications, gravity is well approximated by Newton's law of universal gravitation, which postulates that gravity is a force where two bodies of mass are directly drawn (or 'attracted') to each other according to a mathematical relationship, where the attractive force is proportional to the product of their masses and inversely proportional to the square of the distance between them. This is considered to occur over an infinite range, such that all bodies (with mass) in the universe are drawn to each other no matter how far they are apart.Gravity is the weakest of the four fundamental interactions of nature. The gravitational attraction is approximately 10−38 times the strength of the strong force (i.e. gravity is 38 orders of magnitude weaker), 10−36 times the strength of the electromagnetic force, and 10−29 times the strength of the weak force. As a consequence, gravity has a negligible influence on the behavior of sub-atomic particles, and plays no role in determining the internal properties of everyday matter (but see quantum gravity). On the other hand, gravity is the dominant force at the macroscopic scale, that is the cause of the formation, shape, and trajectory (orbit) of astronomical bodies, including those of asteroids, comets, planets, stars, and galaxies. It is responsible for causing the Earth and the other planets to orbit the Sun; for causing the Moon to orbit the Earth; for the formation of tides; for natural convection, by which fluid flow occurs under the influence of a density gradient and gravity; for heating the interiors of forming stars and planets to very high temperatures; for solar system, galaxy, stellar formation and evolution; and for various other phenomena observed on Earth and throughout the universe.In pursuit of a theory of everything, the merging of general relativity and quantum mechanics (or quantum field theory) into a more general theory of quantum gravity has become an area of research.
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