Bell Work 2/23/10
... Newton’s first law of motion is sometimes called the law of inertia. Inertia is “want to,” when an object resists change because it “wants to” keep going in a straight line. Inertia depends on an object’s mass. The more mass an object has, the more inertia an object has. ...
... Newton’s first law of motion is sometimes called the law of inertia. Inertia is “want to,” when an object resists change because it “wants to” keep going in a straight line. Inertia depends on an object’s mass. The more mass an object has, the more inertia an object has. ...
Chapter 3 Review
... 16. Sally throws a ball horizontally from the top of a tall building at the same time that Pete drops a ball from the top of the same building. Which ball will hit the ground first? Explain your answer. ...
... 16. Sally throws a ball horizontally from the top of a tall building at the same time that Pete drops a ball from the top of the same building. Which ball will hit the ground first? Explain your answer. ...
gravity ppt - District 196
... Given: r = 2.1 x 105 m + 6.37 x 106 m = 6.58 x 106 m mearth = 5.98 x 1024 kg Unknown: Fg Equation: F = ma, now Fg = mg (We need g at that altitude.) Fg = Fg mg = G m1 m2 r2 g=Gm r2 = (6.67 x 10-11 N m2/kg2)(5.98 x 1024 kg) (6.58 x 106 m)2 = 9.21 m/s2 ...
... Given: r = 2.1 x 105 m + 6.37 x 106 m = 6.58 x 106 m mearth = 5.98 x 1024 kg Unknown: Fg Equation: F = ma, now Fg = mg (We need g at that altitude.) Fg = Fg mg = G m1 m2 r2 g=Gm r2 = (6.67 x 10-11 N m2/kg2)(5.98 x 1024 kg) (6.58 x 106 m)2 = 9.21 m/s2 ...
Pre-lab on forces
... 2. Do you see any relationship between the mass of the car and its velocity? (If mass increases, does velocity increase?) 3. If a semi-truck and a Honda Civic were to hit a block wall going at the same velocity, which would hit the wall with a greater force? Use Newton’s 2nd Law to answer this. 4. F ...
... 2. Do you see any relationship between the mass of the car and its velocity? (If mass increases, does velocity increase?) 3. If a semi-truck and a Honda Civic were to hit a block wall going at the same velocity, which would hit the wall with a greater force? Use Newton’s 2nd Law to answer this. 4. F ...
24 Slides
... • Newton’s 1st Law of Motion – Objects in motion will stay in motion and objects at rest will stay at rest…unless a force acts on them. The ball will stay at rest (not move) unless the dog moves it. ...
... • Newton’s 1st Law of Motion – Objects in motion will stay in motion and objects at rest will stay at rest…unless a force acts on them. The ball will stay at rest (not move) unless the dog moves it. ...
Section 1 Forces Newton`s Second Law
... 1. A marble is placed at the top of a smooth ramp. What will happen to the marble? What force causes this? 2. A marble is rolling around in the back of a small toy wagon as the wagon is pulled along the sidewalk. When the wagon is stopped suddenly by a rock under one of the wheels, the marble rolls ...
... 1. A marble is placed at the top of a smooth ramp. What will happen to the marble? What force causes this? 2. A marble is rolling around in the back of a small toy wagon as the wagon is pulled along the sidewalk. When the wagon is stopped suddenly by a rock under one of the wheels, the marble rolls ...
Ch. 27.3 Star Groups
... One complete rotation in 200 million years. Our sun is about 30,000 light-years from the center. ...
... One complete rotation in 200 million years. Our sun is about 30,000 light-years from the center. ...
Dynamics #2
... 3. A vertical rope is attached to a 35 kg cart. What tension in the rope is needed to cause the cart to acquire an upward velocity of 4.0 m/s in 0.50 s? 4. An elevator of mass 1000 kg is supported by a cable that can sustain a force of 12,000 N. What is the maximum upward acceleration that can be gi ...
... 3. A vertical rope is attached to a 35 kg cart. What tension in the rope is needed to cause the cart to acquire an upward velocity of 4.0 m/s in 0.50 s? 4. An elevator of mass 1000 kg is supported by a cable that can sustain a force of 12,000 N. What is the maximum upward acceleration that can be gi ...
Newton`s 3rd Law
... Book pushes down on table top,________ Bat hits ball, _____________ Car pushes road, _____________ ...
... Book pushes down on table top,________ Bat hits ball, _____________ Car pushes road, _____________ ...
Newton`s Laws (powerpoint)
... while riding a skateboard (or wagon or bicycle), you fly forward off the board when hitting a curb, a rock or another object which abruptly halts the motion of the skateboard. When cars turn, there seems to be a force towards the outside. There is no force to the outside!!! Explain. ...
... while riding a skateboard (or wagon or bicycle), you fly forward off the board when hitting a curb, a rock or another object which abruptly halts the motion of the skateboard. When cars turn, there seems to be a force towards the outside. There is no force to the outside!!! Explain. ...
Force and Motion Football Game
... • The blue car has a greater acceleration. It is changing its velocity at a more drastic rate. ...
... • The blue car has a greater acceleration. It is changing its velocity at a more drastic rate. ...
Newtons Laws and projectile motion
... until acted on by some external force” Likewise, an object in motion will stay in motion until acted on by another force. This Law can also be known as.. The Law of ...
... until acted on by some external force” Likewise, an object in motion will stay in motion until acted on by another force. This Law can also be known as.. The Law of ...
• Introduction
... Mass characterises two different properties of an object -its resistance to changes in its velocity (inertial mass) and its gravitational interaction with other objects (gravitational mass). Experiments show that the two are proportional and in the system of units chosen they are the same. Supposing ...
... Mass characterises two different properties of an object -its resistance to changes in its velocity (inertial mass) and its gravitational interaction with other objects (gravitational mass). Experiments show that the two are proportional and in the system of units chosen they are the same. Supposing ...
ISCI 2002 Quiz Chapter 3 – Newton`s Laws of Motion
... of 6 N. What is the force of friction between the block and the surface? A) less than 6 N B) more than 6 N C) 6 N D) need more information to say ...
... of 6 N. What is the force of friction between the block and the surface? A) less than 6 N B) more than 6 N C) 6 N D) need more information to say ...
Newton`s Laws
... Newton’s Laws Newton’s First Law Law of Inertia Newton’s Second Law F = ma Newton’s Third Law Action Reaction Law of Universal ...
... Newton’s Laws Newton’s First Law Law of Inertia Newton’s Second Law F = ma Newton’s Third Law Action Reaction Law of Universal ...
Today`s Powerpoint
... Newton’s laws of motion explain how objects interact with the world and with each other. Newton’s first law: An object at rest will remain at rest, and an object will move in a straight line at constant speed if and only if the sum of forces that act on it are balanced. ...
... Newton’s laws of motion explain how objects interact with the world and with each other. Newton’s first law: An object at rest will remain at rest, and an object will move in a straight line at constant speed if and only if the sum of forces that act on it are balanced. ...
Newton`s Law of Universal Gravitation
... Newton’s Law of Universal Gravitation In 1666, some 45 years after Kepler did his work, 24-year-old Isaac Newton used mathematics to show that if the path of a planet were an ellipse, which was in agreement with Kepler’s first law of planetary motion, then the magnitude of the force, F, on the plan ...
... Newton’s Law of Universal Gravitation In 1666, some 45 years after Kepler did his work, 24-year-old Isaac Newton used mathematics to show that if the path of a planet were an ellipse, which was in agreement with Kepler’s first law of planetary motion, then the magnitude of the force, F, on the plan ...
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.