Stacey Carpenter - University of Hawaii
... The main thing about gravity is that all objects have it, just like all objects have mass and inertia - gravity is a property of matter. All objects are attracted to each other. The strength of gravity is proportional to the mass of the object. If an object's mass doubles, the force of gravity on it ...
... The main thing about gravity is that all objects have it, just like all objects have mass and inertia - gravity is a property of matter. All objects are attracted to each other. The strength of gravity is proportional to the mass of the object. If an object's mass doubles, the force of gravity on it ...
Forces and Fields.
... masses in the force law are point masses. The force between two spherical masses whose separation is large compared to their radii is the same as if the two spheres were point masses with their masses concentrated at the centers of the spheres. ...
... masses in the force law are point masses. The force between two spherical masses whose separation is large compared to their radii is the same as if the two spheres were point masses with their masses concentrated at the centers of the spheres. ...
Force and Motion
... An object is in EQULIBRIUM when the sum of all of the forces acting on it is zero. An object in EQUILIBRIUM will either be (and remain) at rest (no motion), or Will move with CONSTANT VELOCITY ...
... An object is in EQULIBRIUM when the sum of all of the forces acting on it is zero. An object in EQUILIBRIUM will either be (and remain) at rest (no motion), or Will move with CONSTANT VELOCITY ...
HOMEWORK FOR UNIT 5-1
... pulled o the standard length would be entered as 5 units. The force probe should then be calibrated quantitatively to measure any force within its range in terms of the spring units. 3. What is meant by a proportional relationship? Is this the same as a linear relationship? Explain. “proportional” ...
... pulled o the standard length would be entered as 5 units. The force probe should then be calibrated quantitatively to measure any force within its range in terms of the spring units. 3. What is meant by a proportional relationship? Is this the same as a linear relationship? Explain. “proportional” ...
PH607 – Galaxies
... is such that the orbital speed of most stars in the galaxy does not depend strongly on its distance from the center. Away from the central bulge or outer rim, the typical stellar velocity is between 210 and 240 km/s. Hence the orbital period of the typical star is directly proportional only to the l ...
... is such that the orbital speed of most stars in the galaxy does not depend strongly on its distance from the center. Away from the central bulge or outer rim, the typical stellar velocity is between 210 and 240 km/s. Hence the orbital period of the typical star is directly proportional only to the l ...
Mass on a plane with friction
... 2 attached masses on an inclined plane But how do you determine if acceleration will be up or down the plane? Compare the values of m1gsinθ and m2g to determine which is bigger. If m1gsinθ is bigger it will pull the mass down the plane. If m2g is bigger it will pull the mass up the plane. In genera ...
... 2 attached masses on an inclined plane But how do you determine if acceleration will be up or down the plane? Compare the values of m1gsinθ and m2g to determine which is bigger. If m1gsinθ is bigger it will pull the mass down the plane. If m2g is bigger it will pull the mass up the plane. In genera ...
AP Physics 1 Investigation 2: Newton`s Second Law
... cart and the falling mass are included in the total inertial mass of the system being affected by the gravitational force on the falling mass. During the investigation, all masses to be used as falling masses should be placed in the cart when not pulling the cart. Students will be tempted to have th ...
... cart and the falling mass are included in the total inertial mass of the system being affected by the gravitational force on the falling mass. During the investigation, all masses to be used as falling masses should be placed in the cart when not pulling the cart. Students will be tempted to have th ...
PhysicsMCExamReview-SPG2015
... 22. When one force exerts a force on a second object, the second object exerts a force on the first object that is equal in magnitude but opposite in direction is a statement of a. kinematics b. Newton’s second law c. Newton’s third law d. net force 23. The acceleration of an object is directly prop ...
... 22. When one force exerts a force on a second object, the second object exerts a force on the first object that is equal in magnitude but opposite in direction is a statement of a. kinematics b. Newton’s second law c. Newton’s third law d. net force 23. The acceleration of an object is directly prop ...
FORCES AND MOTION UNIT TEST Multiple Choice
... d. greater in size than both forces combined. 27. According to Newton’s second law of motion, the acceleration of an object equals the net force acting on the object divided by the object’s a. mass. c. momentum. b. velocity. d. weight. 28. Which of the following materials will sink in water? (The de ...
... d. greater in size than both forces combined. 27. According to Newton’s second law of motion, the acceleration of an object equals the net force acting on the object divided by the object’s a. mass. c. momentum. b. velocity. d. weight. 28. Which of the following materials will sink in water? (The de ...
Ch 6 Newton`s Third Law Summary
... A given force exerted on a small mass produces a greater acceleration than the same force exerted on a large mass. • Recall that Newton’s second law states that acceleration is proportional to the net force and inversely proportional to the mass. • When a boulder falls toward Earth, Earth also moves ...
... A given force exerted on a small mass produces a greater acceleration than the same force exerted on a large mass. • Recall that Newton’s second law states that acceleration is proportional to the net force and inversely proportional to the mass. • When a boulder falls toward Earth, Earth also moves ...
The Wizard Test Maker
... 17. A rocket engine acquires motion by ejecting hot gases in the opposite direction. This is an example of the law of (A) conservation of heat (B) conservation of energy (C) conservation of linear momentum (D) conservation of mass (E) conservation of angular momentum 18. An 40 kg object is being pus ...
... 17. A rocket engine acquires motion by ejecting hot gases in the opposite direction. This is an example of the law of (A) conservation of heat (B) conservation of energy (C) conservation of linear momentum (D) conservation of mass (E) conservation of angular momentum 18. An 40 kg object is being pus ...
CAPA
... Indicate whether the following statements are always true or can be false. (Select T-True, F-False. If the first is F and the rest T, enter FTTTTT). A) If two objects have the same acceleration, they are under the influence of equal forces. B) If an object's speed does not change, no net force is ac ...
... Indicate whether the following statements are always true or can be false. (Select T-True, F-False. If the first is F and the rest T, enter FTTTTT). A) If two objects have the same acceleration, they are under the influence of equal forces. B) If an object's speed does not change, no net force is ac ...
force=mass times acceleration
... 11. Inertia: the tendency of an object to resist a change in its motion 12. Inexhaustible: incapable of being entirely consumed or used up; renewable 13. Joule: SI unit of energy 14. Kinetic energy: The energy of a moving object 15. Law of Conservation of Energy: That energy can neither be created n ...
... 11. Inertia: the tendency of an object to resist a change in its motion 12. Inexhaustible: incapable of being entirely consumed or used up; renewable 13. Joule: SI unit of energy 14. Kinetic energy: The energy of a moving object 15. Law of Conservation of Energy: That energy can neither be created n ...
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.