Second practice midetrm key (Word document)
... If the initial velocity were 3.15 m/s, what would be the theoretical range be if the ball was shot at an angle of 30° above the horizontal (and landed at the same height from which it was shot). R = v^2 sin(2 * theta) / g = 3.15^2 * sin (2 * 30) / 9.8 = 0.877 m What other angle does theory predict w ...
... If the initial velocity were 3.15 m/s, what would be the theoretical range be if the ball was shot at an angle of 30° above the horizontal (and landed at the same height from which it was shot). R = v^2 sin(2 * theta) / g = 3.15^2 * sin (2 * 30) / 9.8 = 0.877 m What other angle does theory predict w ...
Circular Motion
... Any force that is directed at a right angle to the path of a moving object and that tends to produce circular motion. Gravitational force directed toward the center of the Earth holds the moon in an almost circular orbit around the Earth. Electrons revolving around the nucleus of the atom are held i ...
... Any force that is directed at a right angle to the path of a moving object and that tends to produce circular motion. Gravitational force directed toward the center of the Earth holds the moon in an almost circular orbit around the Earth. Electrons revolving around the nucleus of the atom are held i ...
Gravitational Forces
... Newton realized that the gravitational force acting on an object just did not depend on it’s mass, but the mass of the object pulling it. Also the mass of at least one of the two objects must be very large for the force to be noticed. – You don’t often see a person stuck to a wall because of ...
... Newton realized that the gravitational force acting on an object just did not depend on it’s mass, but the mass of the object pulling it. Also the mass of at least one of the two objects must be very large for the force to be noticed. – You don’t often see a person stuck to a wall because of ...
momentum
... -1686, Sir Issac Newton publishes his book Principia in which he describes 3 laws relating forces to motion of objects -did not discover all 3 laws himself, but combined previous discoveries by other scientists and explained them in a way that people could understand -as a result, the 3 laws are com ...
... -1686, Sir Issac Newton publishes his book Principia in which he describes 3 laws relating forces to motion of objects -did not discover all 3 laws himself, but combined previous discoveries by other scientists and explained them in a way that people could understand -as a result, the 3 laws are com ...
Our Place in the Cosmos Elective Course
... of motion which are more general then Kepler’s laws • They govern the motion of falling apples, cannonballs as well as planets • Success of Newton’s laws has led them to be accepted as physical laws ...
... of motion which are more general then Kepler’s laws • They govern the motion of falling apples, cannonballs as well as planets • Success of Newton’s laws has led them to be accepted as physical laws ...
Motion and Forces
... around us? Guiding How do Newton’s Laws affect Question / everyday objects? Learning Target Warm-up ...
... around us? Guiding How do Newton’s Laws affect Question / everyday objects? Learning Target Warm-up ...
Ch. 11.3
... Newton’s Laws • 1. An object in motion or rest remains the same unless acted on by a force. • 2. Force= mass x acceleration. The amount of force needed to move an object is equal to the amount of mass in the object and how much you want to accelerate it. • 3. For every action there is an = and oppo ...
... Newton’s Laws • 1. An object in motion or rest remains the same unless acted on by a force. • 2. Force= mass x acceleration. The amount of force needed to move an object is equal to the amount of mass in the object and how much you want to accelerate it. • 3. For every action there is an = and oppo ...
Chapter 18 Test Review
... • What factors affect an object’s gravitational force? • Masses of the objects and distance of the objects. ...
... • What factors affect an object’s gravitational force? • Masses of the objects and distance of the objects. ...
HP Unit GTOR - student handout
... Hulse and Taylor the Nobel Prize in Physics because the object is so exotic and so well suited to testing modern theories of gravitation such as Einstein's General Theory of Relativity. ...
... Hulse and Taylor the Nobel Prize in Physics because the object is so exotic and so well suited to testing modern theories of gravitation such as Einstein's General Theory of Relativity. ...
PhysicsSG-Gravitation-91109R
... collapse. The gravitational forces keep pulling all the matter together tighter and tighter, crushing the atoms out of existence. Under these extreme conditions, the protons and electrons can be squeezed together to form neutrons. If the collapse is halted when the neutrons all come into contact wit ...
... collapse. The gravitational forces keep pulling all the matter together tighter and tighter, crushing the atoms out of existence. Under these extreme conditions, the protons and electrons can be squeezed together to form neutrons. If the collapse is halted when the neutrons all come into contact wit ...
Mass and Weight Worksheet
... 6) A search and rescue team is trying to lift an injured hiker out of narrow ravine by means of a cable dropped from a helicopter. The cable is old and the maximum tension it can withstand without breaking is 1500 N. The team would like to get the hiker out as quickly as possible and the helicopter ...
... 6) A search and rescue team is trying to lift an injured hiker out of narrow ravine by means of a cable dropped from a helicopter. The cable is old and the maximum tension it can withstand without breaking is 1500 N. The team would like to get the hiker out as quickly as possible and the helicopter ...
Document
... The correct unit for weight force is the newton (N). What is your metric weight? (reminder 1 kg=~2.2 lb.) Divide your weight by 2.2 lbs to convert it to mass, then multiply by 9.8m/sec2. This will give your wt. in newtons. ...
... The correct unit for weight force is the newton (N). What is your metric weight? (reminder 1 kg=~2.2 lb.) Divide your weight by 2.2 lbs to convert it to mass, then multiply by 9.8m/sec2. This will give your wt. in newtons. ...
5.1 - Mass/Spring Systems
... After a mass is attached to a spring, it stretches the spring by an amount s to an ____________________ ____________ where it’s weight W is balanced by the restoring force F ks . Weight is defined by ____________ times ______________. _______________ can be measured in ...
... After a mass is attached to a spring, it stretches the spring by an amount s to an ____________________ ____________ where it’s weight W is balanced by the restoring force F ks . Weight is defined by ____________ times ______________. _______________ can be measured in ...
student handout
... The potential energy of a system can be thought of as the amount of work done to assemble the system into the particular configuration that its currently in. So, to compute the potential energy of a system, we can imagine assembling the system piece by piece, computing the work necessary at each ste ...
... The potential energy of a system can be thought of as the amount of work done to assemble the system into the particular configuration that its currently in. So, to compute the potential energy of a system, we can imagine assembling the system piece by piece, computing the work necessary at each ste ...
Solar nebula theory
... Gravity acts on the smallest of particles (a molecule or bit of dust or atom) to the largest of objects (a star, a galaxy and the universe). ...
... Gravity acts on the smallest of particles (a molecule or bit of dust or atom) to the largest of objects (a star, a galaxy and the universe). ...
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.