Dynamics - Newton`s 2nd Law Activity
... Newton's First Law tells what happens to an object when no unbalanced forces act on it, and Newton's Second Law tells what happens to an object when an unbalanced force does act on it (acceleration = net force/mass). It is one thing to be able to recite all of this, but quite another thing to unders ...
... Newton's First Law tells what happens to an object when no unbalanced forces act on it, and Newton's Second Law tells what happens to an object when an unbalanced force does act on it (acceleration = net force/mass). It is one thing to be able to recite all of this, but quite another thing to unders ...
HNRS 227 Lecture #2 Chapters 2 and 3
... toward the front at 5.0 miles/hour. The bus is moving in a straight line at 50 miles/hour. What is the speed of the insect? The speed of the insect relative to the ground is the 50.0 mi/hr of the bus plus the 5.0 mi/hr of the insect relative to the bus for a total of 55 mi/hr. Relative to the bus a ...
... toward the front at 5.0 miles/hour. The bus is moving in a straight line at 50 miles/hour. What is the speed of the insect? The speed of the insect relative to the ground is the 50.0 mi/hr of the bus plus the 5.0 mi/hr of the insect relative to the bus for a total of 55 mi/hr. Relative to the bus a ...
Newton`s Laws of Motion
... The dummy has inertia and wants to keep going forward. The seatbelt is what keeps the dummy from continuing to move forward. WEAR YOUR SEATBELT!!! ...
... The dummy has inertia and wants to keep going forward. The seatbelt is what keeps the dummy from continuing to move forward. WEAR YOUR SEATBELT!!! ...
Intro Sheet
... among several objects by using free-body diagrams that include the application of Newton’s third law to identify forces. [SP 1.4] Learning Objective 3.B.1.1: The student is able to predict the motion of an object subject to forces exerted by several objects using an application of Newton’s second la ...
... among several objects by using free-body diagrams that include the application of Newton’s third law to identify forces. [SP 1.4] Learning Objective 3.B.1.1: The student is able to predict the motion of an object subject to forces exerted by several objects using an application of Newton’s second la ...
Elements of Physics
... l. Newton showed the is held in its orbit by the Earth's gravity 3. major tool of physics 4. astronomer who concluded the sun was the center of the universe 5. for every action there is an equal and opposite reaction is the 6. his theory showed that gravity affects light 7. total quantity of an obje ...
... l. Newton showed the is held in its orbit by the Earth's gravity 3. major tool of physics 4. astronomer who concluded the sun was the center of the universe 5. for every action there is an equal and opposite reaction is the 6. his theory showed that gravity affects light 7. total quantity of an obje ...
Newton`s 1st Law
... Note: Teacher could find a video of a skate boarder hitting an object or find an on line animation (See resources at end.) Have a student ride a skateboard slowly into an object. Then ask: What happened to the skater in this activity? What kind of unbalanced force do you think you will need to get i ...
... Note: Teacher could find a video of a skate boarder hitting an object or find an on line animation (See resources at end.) Have a student ride a skateboard slowly into an object. Then ask: What happened to the skater in this activity? What kind of unbalanced force do you think you will need to get i ...
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.