CSUN PHYSICS WORKSHOP SUMMER 2001 July 9
... above the same point on the equator of the earth. Such satellites are used for purposes as cable TV transmission, for weather forecasting, and as communication relays. What is the height above the earth’s surface such a satellite must orbit? Do lower orbit satellites move faster or slower? ...
... above the same point on the equator of the earth. Such satellites are used for purposes as cable TV transmission, for weather forecasting, and as communication relays. What is the height above the earth’s surface such a satellite must orbit? Do lower orbit satellites move faster or slower? ...
Study Guide Exercises
... increases, the acceleration of the object 5. Circle the letter of each statement about force and acceleration that is true. a. Balanced forces cause constant acceleration. b. The forces acting on an object at rest are unbalanced. QA net force acting on an object causes acceleration. d. Force is not ...
... increases, the acceleration of the object 5. Circle the letter of each statement about force and acceleration that is true. a. Balanced forces cause constant acceleration. b. The forces acting on an object at rest are unbalanced. QA net force acting on an object causes acceleration. d. Force is not ...
Newton`s second law
... P1. A monkey starts to slide down a rope. As it speeds up, it tightens its grip, until it slides at a constant velocity down the rope. Which of these choices is true as it slides at constant speed? a) The gravitational force is equal (in magnitude) to the frictional force. b) The gravitational forc ...
... P1. A monkey starts to slide down a rope. As it speeds up, it tightens its grip, until it slides at a constant velocity down the rope. Which of these choices is true as it slides at constant speed? a) The gravitational force is equal (in magnitude) to the frictional force. b) The gravitational forc ...
Lecture powerpoint
... B. the point at which all forces appear to act. C. the time at which inertia occurs. D. an alternative term for moment arm. ...
... B. the point at which all forces appear to act. C. the time at which inertia occurs. D. an alternative term for moment arm. ...
Newton`s Laws and Forces APS 2 longer with pix
... The word inertia comes from the Italian word for “laziness.” Inertia is DIRECTLY PROPORTIONAL TO MASS ONLY. (More mass means more inertia.) Inertia has nothing to do with size, speed, or anything else. ...
... The word inertia comes from the Italian word for “laziness.” Inertia is DIRECTLY PROPORTIONAL TO MASS ONLY. (More mass means more inertia.) Inertia has nothing to do with size, speed, or anything else. ...
Motion Notes
... matter in an object b. weight is the gravitational force an object experiences due to its mass. Ex: 66 kg x 9.8 m/s2=650 N (Earth 150 ...
... matter in an object b. weight is the gravitational force an object experiences due to its mass. Ex: 66 kg x 9.8 m/s2=650 N (Earth 150 ...
Physical Science Chapter 1 & 2 Motion & Force
... 1. Newton’s Second Law of Motion – The net force on an object is equal to the product of its acceleration and its mass: 2. mass= Force / acceleration 3. acceleration = force / mass Friction & Gravity 1. Friction: the force of friction is the force that one surface exerts on another one when they are ...
... 1. Newton’s Second Law of Motion – The net force on an object is equal to the product of its acceleration and its mass: 2. mass= Force / acceleration 3. acceleration = force / mass Friction & Gravity 1. Friction: the force of friction is the force that one surface exerts on another one when they are ...
Ch 3 semester 2 review study guide
... 29. The phrase “to every action there is an equal and opposite reaction” is ________________. 30. When a car travels around a curve in the road, ________________ helps to keep the car traveling in a curved path. 31. The largest velocity reached by a falling object is its _________________. 32. The f ...
... 29. The phrase “to every action there is an equal and opposite reaction” is ________________. 30. When a car travels around a curve in the road, ________________ helps to keep the car traveling in a curved path. 31. The largest velocity reached by a falling object is its _________________. 32. The f ...
Forces & Motion ()
... The force due to gravity upon a mass of m kg is mg where g is the gravitational field strength. Amazingly, ‘gravitational mass’ appears to be the same as the inertia in Newton II i.e. inertia x acceleration = vector sum of forces. Therefore gravitational field strength is the acceleration of a parti ...
... The force due to gravity upon a mass of m kg is mg where g is the gravitational field strength. Amazingly, ‘gravitational mass’ appears to be the same as the inertia in Newton II i.e. inertia x acceleration = vector sum of forces. Therefore gravitational field strength is the acceleration of a parti ...
Galaxies • Test 3 (New date) – Thurs, 9 April
... Alien astronomers want to measure the mass of the sun using the Doppler effect of light emitted by Jupiter. If the mass of the sun is greater, they would measure a shift in wavelength. A. B. ...
... Alien astronomers want to measure the mass of the sun using the Doppler effect of light emitted by Jupiter. If the mass of the sun is greater, they would measure a shift in wavelength. A. B. ...
Chapter 2 Newton`s Laws
... when the object moves there it has a force. For example the moon is always moving about the earth, but it always is attracted to it, regardless of its location. Thus we use the concept of a force field, the force which would be experienced from gravity or some other force if there were a particle th ...
... when the object moves there it has a force. For example the moon is always moving about the earth, but it always is attracted to it, regardless of its location. Thus we use the concept of a force field, the force which would be experienced from gravity or some other force if there were a particle th ...
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.