Physics 111 - Lecture 6 Dynamics, Newton’s Laws (Summary)

... Dynamics, Newton’s Laws (Summary) • Dynamics deals with why objects move as they do • The Concept of FORCE • Forces are Vectors • Contact Forces: push, pull • Forces at a distance: gravity, electromagetic • The NET FORCE on a body is the vector sum of all forces acting on the body ...

... Dynamics, Newton’s Laws (Summary) • Dynamics deals with why objects move as they do • The Concept of FORCE • Forces are Vectors • Contact Forces: push, pull • Forces at a distance: gravity, electromagetic • The NET FORCE on a body is the vector sum of all forces acting on the body ...

Newton`s Law of Universal Gravitation

... falls to earth (an apple for example), what shape path does it appear to take and why? ...

... falls to earth (an apple for example), what shape path does it appear to take and why? ...

Newton_s Laws

... remains in motion with a constant velocity. This rule only applies if the object is moving in a straight line. ...

... remains in motion with a constant velocity. This rule only applies if the object is moving in a straight line. ...

You get to explore the possible energy transitions for Hydrogen

... Gravity provides the centripetal force that holds a satellite in its orbit. Uniform circular motion: moving on a circular path at constant speed. Still experiencing an acceleration since the direction is constantly changing. ...

... Gravity provides the centripetal force that holds a satellite in its orbit. Uniform circular motion: moving on a circular path at constant speed. Still experiencing an acceleration since the direction is constantly changing. ...

gravitation

... object fall on Earth keeps the planets orbiting around the Sun. As the Gravitational constant (G=6,67 · 10-11 N·m2/kg2) is very small, gravitational force is only perceptible when at least one of the objects has a great mass. Gravitational force is always an atractive force. ...

... object fall on Earth keeps the planets orbiting around the Sun. As the Gravitational constant (G=6,67 · 10-11 N·m2/kg2) is very small, gravitational force is only perceptible when at least one of the objects has a great mass. Gravitational force is always an atractive force. ...

Relativity, Inertia, and Equivalence Principle

... at constant velocity (straight line and constant speed), UNLESS …a net (unbalanced) force acts ...

... at constant velocity (straight line and constant speed), UNLESS …a net (unbalanced) force acts ...

Newton`s Laws of Motion 1) An object with no net force acting on it

... 3) For every force acting on an object, there is an equal but opposite force acting from the object. ...

... 3) For every force acting on an object, there is an equal but opposite force acting from the object. ...

File

... • Find the mass of an object that accelerates 5 m/s2 when pushed with a force of 25 N • Find the acceleration of an object with a mass of 2 kg that is pushed with a force of 6 N • Find the acceleration of an object with a mass of 2 kg that is pushed with a force of 6 N ...

... • Find the mass of an object that accelerates 5 m/s2 when pushed with a force of 25 N • Find the acceleration of an object with a mass of 2 kg that is pushed with a force of 6 N • Find the acceleration of an object with a mass of 2 kg that is pushed with a force of 6 N ...

Newton`s Laws Powerpoint

... The acceleration (change of speed or direction) of a truck will be less than the acceleration of a golf ball if the same force is applied. ...

... The acceleration (change of speed or direction) of a truck will be less than the acceleration of a golf ball if the same force is applied. ...

Stability and Newton`s Laws

... • Force is proportional to acceleration • An object will continue at a constant speed in a linear direction unless acted upon by an outside force (ex gravity, friction etc) • The greater the applied force, the greater the resulting acceleration – provided mass is constant What is an example of this? ...

... • Force is proportional to acceleration • An object will continue at a constant speed in a linear direction unless acted upon by an outside force (ex gravity, friction etc) • The greater the applied force, the greater the resulting acceleration – provided mass is constant What is an example of this? ...

forces - Cloudfront.net

... proportional to the net force acting on the object, is in the direction of the net force, and is inversely proportional to the mass of the object. (p60) ...

... proportional to the net force acting on the object, is in the direction of the net force, and is inversely proportional to the mass of the object. (p60) ...

Newton`s 2nd Law - fhssciencerocks

... One Newton is equal to 0.225 lbs. One pound is equal to 4.448 Newtons If you push an empty cart with the same force you would use to push a full cart, the empty one will have a much greater acceleration ...

... One Newton is equal to 0.225 lbs. One pound is equal to 4.448 Newtons If you push an empty cart with the same force you would use to push a full cart, the empty one will have a much greater acceleration ...

Laws of Motion

... Or, the acceleration of an object is proportional to the net force on the object and inversely proportional to the object’s mass: acceleration = force ÷ mass a=F÷m ...

... Or, the acceleration of an object is proportional to the net force on the object and inversely proportional to the object’s mass: acceleration = force ÷ mass a=F÷m ...

Newton*s Three Laws of Motion

... • Formulated gravitational theory in 16651666 after watching an apple fall out of a tree. ...

... • Formulated gravitational theory in 16651666 after watching an apple fall out of a tree. ...

Dr. Zeemo has a brief guide to Newton`s Three Laws of Motion.

... is tossed in the air, gravity pulls it back down so it can be caught and tossed again. ...

... is tossed in the air, gravity pulls it back down so it can be caught and tossed again. ...

PPT - Ascension

... change in the motion of a body is directly proportional to its mass and the rate of change in its velocity. Acceleration is a change in velocity with respect to time. It can be either an increase or decrease in velocity ...

... change in the motion of a body is directly proportional to its mass and the rate of change in its velocity. Acceleration is a change in velocity with respect to time. It can be either an increase or decrease in velocity ...

Guided Reading Chapter 6 Section 3

... Guided Reading Chapter 6 Section 3 1. Newton’s Third Law applies to _________ of objects. ...

... Guided Reading Chapter 6 Section 3 1. Newton’s Third Law applies to _________ of objects. ...

In physics, modified Newtonian dynamics (MOND) is a theory that proposes a modification of Newton's laws to account for observed properties of galaxies. Created in 1983 by Israeli physicist Mordehai Milgrom, the theory's original motivation was to explain the fact that the velocities of stars in galaxies were observed to be larger than expected based on Newtonian mechanics. Milgrom noted that this discrepancy could be resolved if the gravitational force experienced by a star in the outer regions of a galaxy was proportional to the square of its centripetal acceleration (as opposed to the centripetal acceleration itself, as in Newton's Second Law), or alternatively if gravitational force came to vary inversely with radius (as opposed to the inverse square of the radius, as in Newton's Law of Gravity). In MOND, violation of Newton's Laws occurs at extremely small accelerations, characteristic of galaxies yet far below anything typically encountered in the Solar System or on Earth.MOND is an example of a class of theories known as modified gravity, and is an alternative to the hypothesis that the dynamics of galaxies are determined by massive, invisible dark matter halos. Since Milgrom's original proposal, MOND has successfully predicted a variety of galactic phenomena that are difficult to understand from a dark matter perspective. However, MOND and its generalisations do not adequately account for observed properties of galaxy clusters, and no satisfactory cosmological model has been constructed from the theory.