
File
... “For every action there is an equal and opposite reaction.” More Scientific Version When one object exerts a force on a second object, the second exerts a force on the first that is equal in magnitude, but opposite in direction. ...
... “For every action there is an equal and opposite reaction.” More Scientific Version When one object exerts a force on a second object, the second exerts a force on the first that is equal in magnitude, but opposite in direction. ...
newtons-2nd-3rd-law
... • It’s hard to change the motion of an object that has lots of inertia & it’s easy to change the motion of an object that has little inertia. • Mass can be defined as the measure of an object’s inertia. • The more mass an object has, the more inertia it has, and the harder it is to change its motion ...
... • It’s hard to change the motion of an object that has lots of inertia & it’s easy to change the motion of an object that has little inertia. • Mass can be defined as the measure of an object’s inertia. • The more mass an object has, the more inertia it has, and the harder it is to change its motion ...
Physics 102 Introduction to Physics
... In metric units, weight is expressed in Newtons (N) The acceleration of gravity is g = 9.8 m/s2 (or about 10 m/s2) A brick with a mass of 1kg weighs 9.8 N (or about 10 N) Problem: What is the weight of a ball with a mass of 2 kg? W = (2 kg)(10 m/s2) = 20 N ...
... In metric units, weight is expressed in Newtons (N) The acceleration of gravity is g = 9.8 m/s2 (or about 10 m/s2) A brick with a mass of 1kg weighs 9.8 N (or about 10 N) Problem: What is the weight of a ball with a mass of 2 kg? W = (2 kg)(10 m/s2) = 20 N ...
Newton`s Laws of Motion and Vectors
... The motions we observe in our everyday life follow some simple rules. These rules are called Newton’s Laws and can be expressed as follows: First Law: ...
... The motions we observe in our everyday life follow some simple rules. These rules are called Newton’s Laws and can be expressed as follows: First Law: ...
Investigating g On Other Planets Virtual Lab
... Discussion: A __________is any push or pull on an object and is measured in Newtons. ______________ forces are forces that are equal and opposite. ________________forces can cause a change in motion. According to Newton’s 2nd Law of Motion, if a net force is applied to an object, the object will ___ ...
... Discussion: A __________is any push or pull on an object and is measured in Newtons. ______________ forces are forces that are equal and opposite. ________________forces can cause a change in motion. According to Newton’s 2nd Law of Motion, if a net force is applied to an object, the object will ___ ...
Document
... a) Many Possible Experiments. For example, students could decide to pull with the same force on various air gliders of different masses with spring scales to determine if the acceleration depends on 1/m. b) The best experiment should create the best chance of disproving the relationship a = ΣF/m c) ...
... a) Many Possible Experiments. For example, students could decide to pull with the same force on various air gliders of different masses with spring scales to determine if the acceleration depends on 1/m. b) The best experiment should create the best chance of disproving the relationship a = ΣF/m c) ...
Wed Lecture
... Suppose you are driving through a valley whose bottom has a circular shape. If your mass is m, what is the magnitude of the normal force FN exerted on you by the car seat as you drive past the bottom of the hill A. FN < mg a=v2/R ...
... Suppose you are driving through a valley whose bottom has a circular shape. If your mass is m, what is the magnitude of the normal force FN exerted on you by the car seat as you drive past the bottom of the hill A. FN < mg a=v2/R ...
Dynamics
... There were four unknowns in the problem. • Two accelerations • Two forces of constraint ...
... There were four unknowns in the problem. • Two accelerations • Two forces of constraint ...
Astronomy - Wappingers Central School District
... conference. I will be updating it to reflect the changes in content in this years rules. I’m not sure yet how to test 50 teams at States on the use of DS9 image viewing software, and won’t ...
... conference. I will be updating it to reflect the changes in content in this years rules. I’m not sure yet how to test 50 teams at States on the use of DS9 image viewing software, and won’t ...
Inertia and Newton`s Laws
... Take the force of gravity (g) to be 10 N/kg where you need it 1 What is meant by the inertia of an object? 2 How will the inertia of an object be affected if it is taken to the Moon? 3 A hacksaw blade is held in a vice and has a lump of plasticene fixed to the free end. It is twanged to make it vibr ...
... Take the force of gravity (g) to be 10 N/kg where you need it 1 What is meant by the inertia of an object? 2 How will the inertia of an object be affected if it is taken to the Moon? 3 A hacksaw blade is held in a vice and has a lump of plasticene fixed to the free end. It is twanged to make it vibr ...
Fores Powerpoint
... • Mass is the measure of matter in an object, and the measure of inertia • Weight is the force of gravity on mass • A man with a mass of 100 kg weighs 980 N on Earth and 162 N on the moon and 371 N on Mars, but his mass is always 100 kg. ...
... • Mass is the measure of matter in an object, and the measure of inertia • Weight is the force of gravity on mass • A man with a mass of 100 kg weighs 980 N on Earth and 162 N on the moon and 371 N on Mars, but his mass is always 100 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.