Presentation is loading. Please wait.

Presentation is loading. Please wait.

Gravity. GRAVITY DEFINED  Gravity is the tendency of objects with mass to accelerate towards each other  Gravity is one of the four fundamental forces.

Similar presentations


Presentation on theme: "Gravity. GRAVITY DEFINED  Gravity is the tendency of objects with mass to accelerate towards each other  Gravity is one of the four fundamental forces."— Presentation transcript:

1 Gravity

2 GRAVITY DEFINED  Gravity is the tendency of objects with mass to accelerate towards each other  Gravity is one of the four fundamental forces (interactions) in nature.  Gravity is the tendency of objects with mass to accelerate towards each other  Gravity is one of the four fundamental forces (interactions) in nature.

3 Gravity and our Solar System TThe Sun’s gravity is what holds our solar system together.

4 Planets and Gravity  Since Jupiter is the largest planet, it has the most gravity.  Pluto has the least amount of gravity of all the planets

5 THE HISTORY OF GRAVITY Sir Isaac Newton theorized the Law of Gravitation in 1687 Sir Isaac Newton theorized the Law of Gravitation in 1687

6 UNIVERSAL LAW OF GRAVITATION Gravity is greater when mass is larger and distance is shorter. There is an apple on my head

7 MICROGRAVITY  The further an object is away from another object, the force of gravity is weaker.  The further an object moves from the surface of the Earth, the less gravity it feels from the Earth.  Scientists on the Space Shuttle experience microgravity

8 Mass and Weight are two different Properties of Matter MASS  Mass is a physical property of matter that explains how much matter is in an object  Mass does not change when gravity changes MASS  Mass is a physical property of matter that explains how much matter is in an object  Mass does not change when gravity changes WEIGHT  Weight is a force which is calculated by multiplying the acceleration of gravity times mass.  Weight can change when gravity changes

9 MASS  IF YOU PULLED A MOUSE AND AN ELEPHANT WITH THE SAME AMOUNT OF FORCE, THE ELEPHANT WOULD RESPOND LESS TO PULLING EVEN IF HE DIDN’T PULL BACK AT ALL  THAT IS BECAUSE AN ELEPHANT HAS MORE MASS THAN A MOUSE

10 WEIGHT  An elephant on the Earth would weigh less on the Moon, because gravity is less on the moon.  An elephant’s mass would not change if he went to the moon

11 Video demo  Bill Nye Bill Nye  Bill Nye Bill Nye

12 Wrap Up -Gravity is one of the four fundamental forces (interactions) in nature. -The Sun’s gravity is what holds our solar system together. -Gravity is greater when mass is larger and distance is shorter. -Mass and Weight are not the same thing -Gravity is one of the four fundamental forces (interactions) in nature. -The Sun’s gravity is what holds our solar system together. -Gravity is greater when mass is larger and distance is shorter. -Mass and Weight are not the same thing

13 Works Cited  Doodle, Frances. "Gravity - Science for Kids!" Kidipede - History for Kids - Homework Help for Middle School. 28 Sept. 2006. Web. 02 Mar. 2011..  Jackson, Carl. "HowStuffWorks "How Does Gravity Work?"" Howstuffworks "Science" 11 July 2004. Web. 02 Mar. 2011..  Luiss, Brandon. "Gravitation." Wikipedia, the Free Encyclopedia. 12 Mar. 2001. Web. 02 Mar. 2011..  Siegfried, Tom. "A New View Of Gravity." Science News. Mar.-Apr. 2006. Web. 02 Mar. 2011..  Doodle, Frances. "Gravity - Science for Kids!" Kidipede - History for Kids - Homework Help for Middle School. 28 Sept. 2006. Web. 02 Mar. 2011..  Jackson, Carl. "HowStuffWorks "How Does Gravity Work?"" Howstuffworks "Science" 11 July 2004. Web. 02 Mar. 2011..  Luiss, Brandon. "Gravitation." Wikipedia, the Free Encyclopedia. 12 Mar. 2001. Web. 02 Mar. 2011..  Siegfried, Tom. "A New View Of Gravity." Science News. Mar.-Apr. 2006. Web. 02 Mar. 2011..


Download ppt "Gravity. GRAVITY DEFINED  Gravity is the tendency of objects with mass to accelerate towards each other  Gravity is one of the four fundamental forces."

Similar presentations


Ads by Google