Wednesday, Mar. 2, 2011
... • Please be sure to explain as much as possible • Just the answers in free response problems are not accepted. ...
... • Please be sure to explain as much as possible • Just the answers in free response problems are not accepted. ...
NEWTON`s FIRST LAW
... Drawing Free-Body Diagrams A free-body diagram singles out a body from its neighbours and shows the forces, including reactive forces acting on it. Free-body diagrams are used to show the relative magnitude and direction of all forces acting upon an object in a given situation. The size of an arrow ...
... Drawing Free-Body Diagrams A free-body diagram singles out a body from its neighbours and shows the forces, including reactive forces acting on it. Free-body diagrams are used to show the relative magnitude and direction of all forces acting upon an object in a given situation. The size of an arrow ...
Kepler`s laws - Bishop Moore High School
... by the centripetal force pushing them outward. 3) While gravity is trying to pull them inward, they are trying to continue on a straight-line path. 4) Their weight is reduced in space so the force of gravity is much weaker. ...
... by the centripetal force pushing them outward. 3) While gravity is trying to pull them inward, they are trying to continue on a straight-line path. 4) Their weight is reduced in space so the force of gravity is much weaker. ...
Physics/Graphing Notes
... floor pushes back on the person. A car traveling at a constant speed/velocity. All of the forces are in balance. The car is staying constant. It is not speeding up. Not slowing down. Not changing directions. Unbalanced Force—When a force is greater on one side of an object than another. Unbalanced f ...
... floor pushes back on the person. A car traveling at a constant speed/velocity. All of the forces are in balance. The car is staying constant. It is not speeding up. Not slowing down. Not changing directions. Unbalanced Force—When a force is greater on one side of an object than another. Unbalanced f ...
Unit 7 lesson 1 Newton`s Laws
... 1. Momentum (p)= the product of the mass and velocity of an object 2. More momentum the harder it is to stop or change the direction 3. Can be calculated as: ...
... 1. Momentum (p)= the product of the mass and velocity of an object 2. More momentum the harder it is to stop or change the direction 3. Can be calculated as: ...
The Milky Way - Computer Science Technology
... wouldn’t have had so much trouble describing the motion of the planets, but that insight didn’t appear until three decades after the trial of Galileo. Isaac Newton started from the work of Galileo, and devised a way to explain motion and gravity that allowed astronomers to understand orbits and tide ...
... wouldn’t have had so much trouble describing the motion of the planets, but that insight didn’t appear until three decades after the trial of Galileo. Isaac Newton started from the work of Galileo, and devised a way to explain motion and gravity that allowed astronomers to understand orbits and tide ...
MCQ ON NEWTONS LAWS OF MOTION
... 4)Which of Newton's Laws does this situation represent? Imagine a ball moving in a straight line directly toward when another ball collides with it. The moving ball exerts a force on the ball at rest. This causes the ball at rest to accelerate. However, the ball at rest also exerts the same magnitud ...
... 4)Which of Newton's Laws does this situation represent? Imagine a ball moving in a straight line directly toward when another ball collides with it. The moving ball exerts a force on the ball at rest. This causes the ball at rest to accelerate. However, the ball at rest also exerts the same magnitud ...
Dark Matter In The 21st Century
... Between roughly 1950 and 1980, carried out many of the most detailed and influential QuickTime™ and a decompressor studies of the dynamics of stars in galaxies are needed to see this picture. In particular, she published a key paper in 1970 (with W.K. Ford) on the motions of stars in the Andromeda ...
... Between roughly 1950 and 1980, carried out many of the most detailed and influential QuickTime™ and a decompressor studies of the dynamics of stars in galaxies are needed to see this picture. In particular, she published a key paper in 1970 (with W.K. Ford) on the motions of stars in the Andromeda ...
Newton`s Laws of Motion
... depend on Newton’s third law of motion. As the birds push down on the air with their wings, the air pushes their wings up and gives ...
... depend on Newton’s third law of motion. As the birds push down on the air with their wings, the air pushes their wings up and gives ...
Forces and Motion Jeopardy
... On a speed-time graph, a flat line represents ___________ acceleration. ...
... On a speed-time graph, a flat line represents ___________ acceleration. ...
HW2_Answers
... 3. Kepler found that the farther a planet was from the Sun, the slower it moved in its orbit. Use what you have learned about an orbit and the Newton’s law of Gravity to explain why Jupiter cannot orbit the Sun as fast as the Earth. Jupiter is farther from the Sun than the Earth. Because of this, th ...
... 3. Kepler found that the farther a planet was from the Sun, the slower it moved in its orbit. Use what you have learned about an orbit and the Newton’s law of Gravity to explain why Jupiter cannot orbit the Sun as fast as the Earth. Jupiter is farther from the Sun than the Earth. Because of this, th ...
14. Gravitation Universal Law of Gravitation (Newton): G
... where M is the mass of the earth and m is the mass of the astronaut. However, we see pictures of astronauts floating around in the space shuttle ...
... where M is the mass of the earth and m is the mass of the astronaut. However, we see pictures of astronauts floating around in the space shuttle ...
chapter 2 - temsscience7
... 1. Newton's Second Law tells us how to calculate the acceleration if we know the force and the mass. F=ma We are interested in determining the acceleration, so we divide both sides of the equation by m to get F/m=a a = (20 N) / (5 kg) ...
... 1. Newton's Second Law tells us how to calculate the acceleration if we know the force and the mass. F=ma We are interested in determining the acceleration, so we divide both sides of the equation by m to get F/m=a a = (20 N) / (5 kg) ...
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.