File newtons 1st and 2nd law 2015
... • What does this really mean? – An object at rest will stay at rest, and an object in motion will stay in motion at constant velocity, unless acted upon by an unbalanced force. ...
... • What does this really mean? – An object at rest will stay at rest, and an object in motion will stay in motion at constant velocity, unless acted upon by an unbalanced force. ...
Force and Motion PP
... 1. The first law relates to inertia. 2. The tendency for an object to remain in whatever state of motion that it is in is referred to as ‘inertia’ 3. Consider the following: ...
... 1. The first law relates to inertia. 2. The tendency for an object to remain in whatever state of motion that it is in is referred to as ‘inertia’ 3. Consider the following: ...
Review Sheet with Answers
... 16. Are the forces balanced or unbalanced? A. A person sitting on a chair balanced B. 20 N left and 30 N right unbalanced C. An object at constant speed balanced D. An accelerating plane unbalanced E. A stopping car unbalanced ...
... 16. Are the forces balanced or unbalanced? A. A person sitting on a chair balanced B. 20 N left and 30 N right unbalanced C. An object at constant speed balanced D. An accelerating plane unbalanced E. A stopping car unbalanced ...
Newton`s Second Law 1 PPT
... Objective • SWBAT describe Newton’s second law of motion and use it to explain the movement of objects. ...
... Objective • SWBAT describe Newton’s second law of motion and use it to explain the movement of objects. ...
Newton`s Laws and Forces
... Just because there is no movement doesn’t mean that there are no forces. No movement just means that all of the forces acting on one of the objects balance each other out. ...
... Just because there is no movement doesn’t mean that there are no forces. No movement just means that all of the forces acting on one of the objects balance each other out. ...
Chapter 4 Motion
... 5. When a boy lands on a trampoline, he pushes the trampoline. What is the reaction force? A. gravity pulling the boy down B. the boy pushing down C. the friction between the boy and the trampoline D. the trampoline pushing upward 6. The diagram shows a force acting on an object. What is the directi ...
... 5. When a boy lands on a trampoline, he pushes the trampoline. What is the reaction force? A. gravity pulling the boy down B. the boy pushing down C. the friction between the boy and the trampoline D. the trampoline pushing upward 6. The diagram shows a force acting on an object. What is the directi ...
Dynamics: The Why of Motion
... Can be contact where there is physical contact between two objects e.g. shooting a basketball, pulling on the handle of a wagon Can be action-at a-distance forces which do not have physical contact e.g. the earth pulls on the moon, electrical charges attract or repel, magnets attract or repel ...
... Can be contact where there is physical contact between two objects e.g. shooting a basketball, pulling on the handle of a wagon Can be action-at a-distance forces which do not have physical contact e.g. the earth pulls on the moon, electrical charges attract or repel, magnets attract or repel ...
Newton`s First Law
... When an object moves to a different planet. What is the weight of an 85.3-kg person on earth? On Mars (g=3.2 m/s/s)? ...
... When an object moves to a different planet. What is the weight of an 85.3-kg person on earth? On Mars (g=3.2 m/s/s)? ...
Motion and Forces
... Calculate force, mass, and acceleration with Newton’s second law. Recognize that the free-fall acceleration near Earth’s surface is independent of the mass of the falling object. Explain the difference between mass and weight. Identify paired forces on interacting objects. ...
... Calculate force, mass, and acceleration with Newton’s second law. Recognize that the free-fall acceleration near Earth’s surface is independent of the mass of the falling object. Explain the difference between mass and weight. Identify paired forces on interacting objects. ...
Newton`s Laws Slides
... An object at rest tends to remain at rest and an object in motion tends to remain in motion in a straight line at constant speed, unless acted upon by an unbalanced (net) force. This tendency not to change velocity is called The measure of an object’s inertia is called ...
... An object at rest tends to remain at rest and an object in motion tends to remain in motion in a straight line at constant speed, unless acted upon by an unbalanced (net) force. This tendency not to change velocity is called The measure of an object’s inertia is called ...
Document
... The direction of the net force is in the same direction as the acceleration. Thus, if the direction of the acceleration is known, then the direction of the net force is also known. Consider the two oil drop diagrams below for an acceleration of a car. From the diagram, determine the direction of ...
... The direction of the net force is in the same direction as the acceleration. Thus, if the direction of the acceleration is known, then the direction of the net force is also known. Consider the two oil drop diagrams below for an acceleration of a car. From the diagram, determine the direction of ...
Modified Newtonian dynamics
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.