Newton’s Law of Universal Gravitation

Slides:



Advertisements
Similar presentations
Newton’s Law of Universal Gravitation
Advertisements

Universal Gravitation
Newton’s Law of Universal Gravitation By: Heather Britton.
Electrical & Gravitational Force. Newton’s Universal Law of Gravitation Every object in the universe attracts every other object with a force that for.
Aim: How can we explain Newton’s Universal Law of Gravitation? Do Now: Why does the moon orbit the Earth? You will know by the end of the lesson.
Universal Gravitation. ISAAC NEWTON (1642 – 1727) The rate of acceleration due to gravity at the Earth’s surface was proportional to the Earth’s gravitational.
Universal Law of Gravitation Some Basics The force of gravity is the mutual attraction of objects to one another. The acceleration due to gravity.
Newton reasoned that there is a force of attraction between every two objects in the universe.
Universal Gravitation Sir Isaac Newton: The Universal Law of Gravitation.
Newton’s Law of Gravitation. Newton concluded that gravity was a force that acts through even great distances Newton did calculations on the a r of the.
Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional.
Newton’s Law of Gravitation. Newton concluded that gravity was a force that acts through even great distances Newton did calculations on the a r of the.
Kepler’s first law of planetary motion says that the paths of the planets are A. Parabolas B. Hyperbolas C. Ellipses D. Circles Ans: C.
1.  Legend has it that Sir Isaac Newton was struck on the head by a falling apple while napping under a tree. This prompted Newton to imagine that all.
In this chapter you will:  Learn the nature of gravitational force.  Relate Kepler’s laws of planetary motion to Newton's laws of motion.  Describe.
Chapter 5 Circular Motion; Gravitation. © 2004 Pearson Education Inc., publishing as Addison- Wesley The Force of Gravity What is the universal law of.
Universal Law of Gravitation Some Basics The force of gravity (F g ) is the mutual attraction of objects to one another. The acceleration due.
One of the most significant intellectual achievements in the history of thought.
Universal Gravitation - Isaac Newton Combine Kepler’s Laws with Newton’s three laws of motion to get: “Between any two objects there exist an attractive.
Introduction to Physical Science Monday, Wednesday, Thursday Tom Burbine
Law of universal Gravitation Section The force of gravity: All objects accelerate towards the earth. Thus the earth exerts a force on these.
Chapter 6 Gravitation and Newton’s Synthesis HW5: Chapt 6: Pb. 11, Pb. 24, Pb. 25 and Chapt. 7: Pb 6, Pb.11, Pb. 16, Pb.19, Pb. 21 –Due Friday, Oct. 9.
1 The Law of Universal Gravitation. 2 A little background … Legend has it that Sir Isaac Newton was struck on the head by a falling apple while napping.
Topic 6: Fields and Forces 6.1 Gravitational force and field.
Topic 6: Fields and Forces 6.1 Gravitational force and field.
Daily Science Pg.30 Write a formula for finding eccentricity. Assign each measurement a variable letter. If two focus points are 450 km away from one another.
Newton’s Law of Universal Gravitation
Universal Law of Gravitation. So because of Newton’s 3 rd law every body in the universe exerts a force of attraction on every other body. This is Newton’s.
PHY115 – Sault College – Bazlurslide 1 Gravitational Force.
GRAVITATION NEWTON’S LAW OF GRAVITATION There is an attractive force between any two bodies which is directly proportional to the product of their masses.
Conceptual Physics Notes on Chapter 12 UniversalGravitation.
What is the centripetal force acting on a 2000 kilogram airplane if it turns with a radius of 1000 meters while moving at 300 meters per second? a c =
If it is known that A is directly proportional to B, how would A change if B is increased by a factor of 2? 1. Increase by a factor of 2 2. Increase by.
Phys211C12 p1 Gravitation Newton’s Law of Universal Gravitation: Every particle attracts every other particle Force is proportional to each mass Force.
Law of Gravitation. Law of Gravity  Gravitational Force  All objects have mass and therefore will attract all other objects.  The size of the gravitational.
Newton’s Fourth Law Universal Gravitation UniversalUniversal Universal Gravitation.
Newton’s “4 th law”. Law of Universal Gravitation 1.Gravity is universal: ALL objects attract each other. 2.The force of gravity is directly proportional.
Newton’s Law of Universal Gravitation
Universal Gravitation Newton’s 4 th law. Universal Gravitation Kepler’s Laws Newton’s Law of Universal Gravity Applying Newton’s Law of Universal Gravity.
Universal Gravitation Problems Universal Gravitation Problems
The Newtonian Synthesis Nicolaus Copernicus 1473 – 1543 Frame of Reference Tycho Brahe Accurate Data Johannes Kepler Emperical Laws.
Gravity is a force that pulls objects toward each other. Legend says that Isaac Newton discovered gravity when he saw an apple fall from a tree Sir Isaac.
“Every object in the universe attracts every other object in the universe”
FgFg agag mg g W Do you know the difference?? Newton’s Law of Universal Gravitation Every body in the universe attracts every other body with a force.
The Drag Force and Terminal Speed
The story of the apple When Newton observed the apple fall, he wondered if the force that caused the apple to fall to the ground was the same force that.
Newton’s Law of Universal Gravitation
Newton’s law of Universal Gravitation
GRAVITY – ITS NOT JUST A GOOD IDEA …. IT’S THE LAW!!!
2-2-2 Universal Gravitation
Newton’s Law of Gravity
Gravitation.
Newton’s Law of Universal Gravitation
Newton’s Laws of Motion
Newton’s Law of Universal Gravitation
UNIT 3 gravitation.
Isaac Newton ( ) Newton’s Laws of Motion
Gravitation.
Law of universal gravitation
Universal Gravitation
Universal Gravitation
Newton’s Law of Gravitation
Gravitation See video on extreme sports --- defying gravity
The story of the apple When Newton observed the apple fall, he wondered if the force that caused the apple to fall to the ground was the same force that.
Sir Isaac Newton (December 25th, )
Topic 6: Fields and Forces
Newton’s Law of Universal Gravitation
PHYSICS.
Universal Gravitation
Newton’s Law of Universal Gravitation
Presentation transcript:

Newton’s Law of Universal Gravitation Physics Mrs. Coyle

Isaac Newton 1666, England (45 years after Kepler).

Questions If the planets are orbiting the sun , what force is keeping them in orbit? What force keeps the moon in its orbit? Could the force of gravity be universal?

Newton’s Law of Universal Gravitation Any two objects attract each other with a gravitational force, proportional to the product of their masses and inversely proportional to the square of the distance between them. The force acts in the direction of the line connecting the centers of the masses.

Newton’s Law of Universal Gravitation http://scienceblogs.com/startswithabang/upload/2009/07/meet_our_second_moon/400px-NewtonsLawOfUniversalGravitation.svg.png

Why does the moon not fall straight down onto the earth?

Henry Cavendish’s experiment determined the proportionality constant G in 1798. http://www.newscientist.com/data/images/archive/1639/16390101.jpg

The Value of G. G= 6.67 x 10-11 N m2 / kg2

Change of Gravitational Force with Distance Law of universal gravitation is known as an inverse square law.

Problem 1 Two spheres of mass 35kg are 60m apart. What force does one exert on the other? If the mass of on is tripled and the radius is quadrupled how does the force change?

Problem 2 Two spheres of equal mass have a force of gravity of 7x10-9 exerted on each other. If the distance between them is 7m, find the mass.

Problem 3 Find the value of the gravitational acceleration g. The mass of the earth is 6.0 x 1024kg.