Lesson 18 notes – Orbits - science
... Be able to derive the equation T2 = 4 π x r3 GM from first principles; ...
... Be able to derive the equation T2 = 4 π x r3 GM from first principles; ...
Physics NOTES newtons laws
... Falling objects don’t accelerate through their whole fall. Eventually, the force of air resistance pushing up against the object equals the force of gravity pulling down on the object. When that happens, the net force on the falling object becomes zero, and so the object stops accelerating. The fin ...
... Falling objects don’t accelerate through their whole fall. Eventually, the force of air resistance pushing up against the object equals the force of gravity pulling down on the object. When that happens, the net force on the falling object becomes zero, and so the object stops accelerating. The fin ...
D. Gravitational, Electric, and Magnetic Fields
... The force that holds nucleons together to form an atomic nucleus can be thought to be a residual interaction between quarks inside each individual nucleon. This is analogous to what happens in a molecule. The electrons in an atom are bound to its nucleus by electromagnetism: when two atoms are rel ...
... The force that holds nucleons together to form an atomic nucleus can be thought to be a residual interaction between quarks inside each individual nucleon. This is analogous to what happens in a molecule. The electrons in an atom are bound to its nucleus by electromagnetism: when two atoms are rel ...
Newton`s 2nd Law
... forces when problem solving. • Newton’s 2nd Law of Motion states that the rate of acceleration of an object is to the applied and to ...
... forces when problem solving. • Newton’s 2nd Law of Motion states that the rate of acceleration of an object is to the applied and to ...
123mt13a
... the earth and the sun are merely possible points of view from which the motions of the celestial bodies may be described. While the Ptolemaic system which represent the planetary motions by combinations of circular motions - could take any point to be fixed, the choice of any particular point requir ...
... the earth and the sun are merely possible points of view from which the motions of the celestial bodies may be described. While the Ptolemaic system which represent the planetary motions by combinations of circular motions - could take any point to be fixed, the choice of any particular point requir ...
Chapter 4: Forces and Newton`s Laws of Motion
... - seems contrary to everyday experience Inertia – tendency for an object to remain at rest, or to remain in motion with a constant velocity - all objects have inertia ...
... - seems contrary to everyday experience Inertia – tendency for an object to remain at rest, or to remain in motion with a constant velocity - all objects have inertia ...
newton`s laws of motion - Ms Cole Science 2012-13
... ducks and slam on your brakes to avoid hitting them. Since you are not wearing your seat belt, you fly out of the car (remain in motion) until you hit the ground (an unbalanced force). ...
... ducks and slam on your brakes to avoid hitting them. Since you are not wearing your seat belt, you fly out of the car (remain in motion) until you hit the ground (an unbalanced force). ...
Tutorial Notes
... GRAVITATIONAL FIELD Field lines are drawn such that - The tangent to the field represents the direction of g. - The number of field lines per unit cross-sectional area is proportional to the magnitude of g. ...
... GRAVITATIONAL FIELD Field lines are drawn such that - The tangent to the field represents the direction of g. - The number of field lines per unit cross-sectional area is proportional to the magnitude of g. ...
What is a force that slows down motion between two surfaces that
... dropped from a building, which one will fall faster, the large flat one or the smaller one? (smaller one) ...
... dropped from a building, which one will fall faster, the large flat one or the smaller one? (smaller one) ...
1. An 80 kg water skier is being pulled by a boat with a force of 220
... 1. An 80 kg water skier is being pulled by a boat with a force of 220 N causing the skier to accelerate at 1.8 m/s2. Find the drag force on the skier. 2. A 2000 kg car is slowed down uniformly from 20 m/s to 5 m/s in 4 seconds. Determine the average net force on the car during this time, and how far ...
... 1. An 80 kg water skier is being pulled by a boat with a force of 220 N causing the skier to accelerate at 1.8 m/s2. Find the drag force on the skier. 2. A 2000 kg car is slowed down uniformly from 20 m/s to 5 m/s in 4 seconds. Determine the average net force on the car during this time, and how far ...
post 1 review - OnMyCalendar
... 8) What is the acceleration of a mass with 10 kg acted upon by a force of 10 N? How does this compare to the force of 200 N accelerating a mass of 200 kg at the rate of 1 meter per second squared. ...
... 8) What is the acceleration of a mass with 10 kg acted upon by a force of 10 N? How does this compare to the force of 200 N accelerating a mass of 200 kg at the rate of 1 meter per second squared. ...
Gravity PP
... • A ball is thrown horizontally at 25 meters per second from a roof that is 15 meters high. How far does it travel before hitting the ground? – What do you want to know? Distance – What do you know? Vx ; Roof Height – What information do you not have? Time ...
... • A ball is thrown horizontally at 25 meters per second from a roof that is 15 meters high. How far does it travel before hitting the ground? – What do you want to know? Distance – What do you know? Vx ; Roof Height – What information do you not have? Time ...
Lesson Plan 4
... that have numbers for two of the values, and the third needs to be solved. This is the first time that students will be working with actual values for these terms. Evaluate -- Time Estimate 10 minutes Once all groups have finished making their word problems, groups will switch papers. Again, while w ...
... that have numbers for two of the values, and the third needs to be solved. This is the first time that students will be working with actual values for these terms. Evaluate -- Time Estimate 10 minutes Once all groups have finished making their word problems, groups will switch papers. Again, while w ...
Gravitation
... (a) Suppose we want to observe the gravitational field of the earth, an object which is quite massive, let a small object, e.g. a brick fall to the earth. The path of the brick as it moves towards the earth represents Earth’s gravitational field. To get a three dimensional picture of the field, you ...
... (a) Suppose we want to observe the gravitational field of the earth, an object which is quite massive, let a small object, e.g. a brick fall to the earth. The path of the brick as it moves towards the earth represents Earth’s gravitational field. To get a three dimensional picture of the field, you ...
Name - slpscience9
... 3. If the first law is true, when you get an object moving on earth, why does it stop? ____________________ 4. When your car hits the brakes, why do you fly forward? ________________________________________ 5. What is Newton’s Second Law? 6. Which car would move the fastest? (Both have the same engi ...
... 3. If the first law is true, when you get an object moving on earth, why does it stop? ____________________ 4. When your car hits the brakes, why do you fly forward? ________________________________________ 5. What is Newton’s Second Law? 6. Which car would move the fastest? (Both have the same engi ...
Lecture 6
... now considered the "natural state" of all massive objects. Definition: Newton’s first law states that objects move with constant velocity unless there is an unbalanced external force. Lecture demos: Discussion: Teddy bear on cart, table -Friction is often an unbalanced force. cloth and dishes -If an ...
... now considered the "natural state" of all massive objects. Definition: Newton’s first law states that objects move with constant velocity unless there is an unbalanced external force. Lecture demos: Discussion: Teddy bear on cart, table -Friction is often an unbalanced force. cloth and dishes -If an ...
Questions for this book (Word format)
... It took astronomers many years to realise that some of the “fuzzy patches” or “nebulae” in the night sky are actually galaxies like the Milky Way. One reason for this was that only some of the objects catalogued as “nebulae” are actually galaxies. List at least three types of nebula which are not ex ...
... It took astronomers many years to realise that some of the “fuzzy patches” or “nebulae” in the night sky are actually galaxies like the Milky Way. One reason for this was that only some of the objects catalogued as “nebulae” are actually galaxies. List at least three types of nebula which are not ex ...
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.