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Simple Machine Practice Problems
Simple Machine Practice Problems

NAME________ DATE
NAME________ DATE

NewtonsLaws
NewtonsLaws

... If the forces in a direction are _________, the object will change _____. (____________). Force (n)= Mass (kg) times Acceleration (m/s2) Force = mass * change in speed / time The force needed to change speed is proportional to the ____, also, the larger the mass, the ____ the _____________. (note: t ...
Laws of Motion - Stars - University of South Florida
Laws of Motion - Stars - University of South Florida

PS 5.9 - S2TEM Centers SC
PS 5.9 - S2TEM Centers SC

Insert the title here
Insert the title here

... acceleration toward Earth is equal to g, the acceleration due to gravity. What is the force on Earth due to the ball and what is Earth’s resulting acceleration? Earth’s mass is 6.0 x 10 24 kg. ...
1. Find the mass of a 150 N couch. (15 kg) 2. Find the weight of 85
1. Find the mass of a 150 N couch. (15 kg) 2. Find the weight of 85

Topic 2.2 ppt
Topic 2.2 ppt

... exerts a downward tension mg on it and if it is stretched by an amount x, then if k is the tension required to produce unit extension (called the spring constant and measured in Nm-1) the stretching tension is also kx and so ...
J. Peraire 16.07 Dynamics Fall 2004 Version 1.1 Lecture D1
J. Peraire 16.07 Dynamics Fall 2004 Version 1.1 Lecture D1

... out that the motion (e.g. velocity and acceleration) we observe depends on the reference frame we use. Therefore, the above law can not be verified in all reference frames. The reference frames for which this law is satisfied are called inertial reference frames. In some sense, we can say that Newto ...
Wednesday, October 10, 2007
Wednesday, October 10, 2007

Wednesday, Sept. 24, 2003
Wednesday, Sept. 24, 2003

... People have been very curious about the stars in the sky, making observations for a long time. But the data people collected have not been explained until Newton has discovered the law of gravitation. Every particle in the Universe attracts every other particle with a force that is directly proporti ...
Chapter 6 Forces in Motion
Chapter 6 Forces in Motion

... You are hitting an object of unknown mass with a force of 15 N and that object accelerates at 5 m/s/s. What is the mass of the object? If F = m x a, and 1N = 1kg x m/s/s, then ...
as a PDF
as a PDF

Physics 207: Lecture 2 Notes
Physics 207: Lecture 2 Notes

... (About 39 orders of magnitude weaker than the electromagnetic force.) The force points along the line connecting the two objects. Physics 201: Lecture 25, Pg 4 ...
Document
Document

... o What is the difference between the mass and the weight ? o In order to answer this question we need to know the concept of gravitational force. The Gravitational Force: It is the force that the earth exerts on any object (in the picture a cantaloupe) It is directed towards the center of the earth. ...
File
File

7-1 Work Done by a Constant Force The work done by a constant
7-1 Work Done by a Constant Force The work done by a constant

Friction and Gravity
Friction and Gravity

... thrown from one side to another are BOTH in free fall and will hit the ground at the same time. ...
reviewmt1
reviewmt1

... through a distance d along the direction of the force, an amount of WORK Fd is done by the first object on the second and an amount of energy Fd is transferred from the first object to the second. Newton’s third law says that when one object exerts a force F on a second object, then the second objec ...
Why do things move? - USU Department of Physics
Why do things move? - USU Department of Physics

... • Unlike mass ‘m’, ‘I’ depends not only on constituent matter but also the object’s shape and size. Consider a point mass ‘m’ on end of F a light rod of length ‘r’ rotating. r m The applied force ‘F’ will produce a axis of tangential acceleration ‘at’ rotation By Newton’s 2nd law: F = m.at But tange ...
Slide 1
Slide 1

... Therefore, the gravitational force must be proportional to both masses. By observing planetary orbits, Newton also concluded that the gravitational force must decrease as the inverse of the square of the distance between the masses. In its final form, the Law of Universal Gravitation ...
(field forces: magnetic force, gravitational force).
(field forces: magnetic force, gravitational force).

... scalar quantity). The weight of a body varies with its location near the Earth (or other astronomical body), whereas its mass is the same everywhere in the universe. The weight of a body is the force that causes it to be accelerated downward with the acceleration of gravity g. ...
Unit 2 Objectives: Forces and Laws of Motion
Unit 2 Objectives: Forces and Laws of Motion

... 2. What amount of force was required to give a 40-kg wagon an acceleration of 3 m/s2? 120 N 3. Why the relationship between mass and acceleration is inversely proportional? If mass increases, acceleration decreases 4. When mass remains constant, what type of relationship will be apparent between for ...
3) An object moves in a circular path at a constant speed
3) An object moves in a circular path at a constant speed

File
File

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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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