
Problem 1:
... considered for partial credit. In problems where you are requested to show your work, no credit will be given unless your work is shown. Problem 1 (6 pts, no need to show work): Quotes that might have been … next to each of the fictitious quotes, put the letter of the person we have studied who woul ...
... considered for partial credit. In problems where you are requested to show your work, no credit will be given unless your work is shown. Problem 1 (6 pts, no need to show work): Quotes that might have been … next to each of the fictitious quotes, put the letter of the person we have studied who woul ...
Force Balanced and unbalanced
... Notice that when the forces are balanced, the object might still be moving, but the objects are not accelerating, instead they have a constant velocity. Hence, once in motion – it’s always in motion unless acted upon by what? Another Force. ...
... Notice that when the forces are balanced, the object might still be moving, but the objects are not accelerating, instead they have a constant velocity. Hence, once in motion – it’s always in motion unless acted upon by what? Another Force. ...
Physics 11 - hrsbstaff.ednet.ns.ca
... explained by Newton's First Law. 7. If the vector sum of all forces acting on an object is precisely zero, the object could still be moving. 8. An elevator moves vertically upward with a constant speed. The vector sum of all the forces acting on the elevator is precisely zero. 9. For any pair of sur ...
... explained by Newton's First Law. 7. If the vector sum of all forces acting on an object is precisely zero, the object could still be moving. 8. An elevator moves vertically upward with a constant speed. The vector sum of all the forces acting on the elevator is precisely zero. 9. For any pair of sur ...
Newton`s Laws Concepts
... change. In our experience we distinguish contact forces, such as the push of your hand against a door, and action-at-a-distance forces, such as gravity. This distinction is false, however, as the force of your hand against the door is acually due to repulsive electrical forces at the atomic level wh ...
... change. In our experience we distinguish contact forces, such as the push of your hand against a door, and action-at-a-distance forces, such as gravity. This distinction is false, however, as the force of your hand against the door is acually due to repulsive electrical forces at the atomic level wh ...
Explaining Motion
... The force of air drag experienced by the falling object depends on two things: 1. Frontal area of the falling object 2. The speed of the object ...
... The force of air drag experienced by the falling object depends on two things: 1. Frontal area of the falling object 2. The speed of the object ...
AP Physics 1 * Unit 2
... BIG IDEA 4: Interactions between systems can result in changes in those systems. 4.A.1.1: I can use representations of the center of mass of an isolated two-object system to analyze the motion of the system qualitatively and semi-quantitatively. [SP 1.2, 1.4, 2.3, 6.4] 4.A.2.1: I can make prediction ...
... BIG IDEA 4: Interactions between systems can result in changes in those systems. 4.A.1.1: I can use representations of the center of mass of an isolated two-object system to analyze the motion of the system qualitatively and semi-quantitatively. [SP 1.2, 1.4, 2.3, 6.4] 4.A.2.1: I can make prediction ...
inertial reference frame - University of Toronto Physics
... separated by distance r, each object pulls on the other with a force given by Newton’s law of gravity, as follows: ...
... separated by distance r, each object pulls on the other with a force given by Newton’s law of gravity, as follows: ...
HERE - Grants Pass School District 7
... 7. A 1.25 kg physics cart sits at rest on a frictionless track. Another physics cart, this one with a mass of 750 grams is moving 5 m/s along the track when it collides with the first cart. Afterwards, the two carts move apart. The heavier cart is found to be moving 4 m/s after the collision. a. Fin ...
... 7. A 1.25 kg physics cart sits at rest on a frictionless track. Another physics cart, this one with a mass of 750 grams is moving 5 m/s along the track when it collides with the first cart. Afterwards, the two carts move apart. The heavier cart is found to be moving 4 m/s after the collision. a. Fin ...
How can we make BLOODHOUND travel at 1000 mph?
... engineering team are working to solve this problem with their jet-and-rocket powered car aiming to smash the current land speed record. This British team currently hold the record with the Thrust SSC (SuperSonic Car) that made history by breaking the sound barrier and reaching 763mph. Now they are a ...
... engineering team are working to solve this problem with their jet-and-rocket powered car aiming to smash the current land speed record. This British team currently hold the record with the Thrust SSC (SuperSonic Car) that made history by breaking the sound barrier and reaching 763mph. Now they are a ...
Ezio Fornero, Space and Motion as Problems of
... century, only partially resolved by the two theories of Relativity and Quantum Mechanics, since any “final” theory (if it will ever be elaborated) should compound two incompatible ways of seeing, the deterministic and reversible one of Relativity and the probabilistic of Quantum Mechanics. I think i ...
... century, only partially resolved by the two theories of Relativity and Quantum Mechanics, since any “final” theory (if it will ever be elaborated) should compound two incompatible ways of seeing, the deterministic and reversible one of Relativity and the probabilistic of Quantum Mechanics. I think i ...
Online Education and Outreach
... that fascinated or surprised them, then challenge your students to prove or disprove the accuracy of the facts they put on their “Everything We Think We Know About…” list. Discuss what else they learned and use the follow-up questions and activities to inspire further discussion. Encourage students ...
... that fascinated or surprised them, then challenge your students to prove or disprove the accuracy of the facts they put on their “Everything We Think We Know About…” list. Discuss what else they learned and use the follow-up questions and activities to inspire further discussion. Encourage students ...
Problem Set #3
... a. Is your galaxy in solid body rotation? How do you know? b. What is the local rotation speed at your position? c. Is the rotation curve locally flat? How do you know? d. What is the mass of the Galaxy contained within R0? e. Do you think this Galaxy is likely to be more or less massive than the Mi ...
... a. Is your galaxy in solid body rotation? How do you know? b. What is the local rotation speed at your position? c. Is the rotation curve locally flat? How do you know? d. What is the mass of the Galaxy contained within R0? e. Do you think this Galaxy is likely to be more or less massive than the Mi ...
newtons laws study guide 2015
... The best plan is to study every night for 15 to 20 minutes. Make sure you know the three laws – inside and out! You must know the vocabulary too! Newton’s First Law An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same spe ...
... The best plan is to study every night for 15 to 20 minutes. Make sure you know the three laws – inside and out! You must know the vocabulary too! Newton’s First Law An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same spe ...
Objective 2 Examine the force exerted on objects by gravity
... 13. Why is important to know the 3rd law of motion if you are an architect? The structure needs to have enough support to hold the building and objects in it up (& not crash down). 14. What is a net force? The total sum of all forces. 15. Give an example of friction in action: When an object moves p ...
... 13. Why is important to know the 3rd law of motion if you are an architect? The structure needs to have enough support to hold the building and objects in it up (& not crash down). 14. What is a net force? The total sum of all forces. 15. Give an example of friction in action: When an object moves p ...
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.