gravity. gravity defined gravity is the tendency of objects with mass to accelerate towards each...

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Gravity QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture.

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Page 1: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

GravityGravityQuickTime™ and aTIFF (Uncompressed) decompressor

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QuickTime™ and aTIFF (Uncompressed) decompressor

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QuickTime™ and aTIFF (Uncompressed) decompressor

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QuickTime™ and aTIFF (Uncompressed) decompressor

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

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.

Page 3: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

Gravity and our Solar System

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• The Sun’s gravity is what holds our solar system together.

Page 4: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

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

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Page 5: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

THE HISTORY OF GRAVITYTHE HISTORY OF GRAVITY

Sir Isaac Newtontheorized the

Law of Gravitation in 1687

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Page 6: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

UNIVERSAL LAW OF GRAVITATION

Gravity is greater when mass is largerand distance is shorter.

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There is an apple

on my head

Page 7: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

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

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Page 8: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

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

WEIGHT Weight is a force which is

calculated by multiplying the acceleration of

gravity times mass. Weight can change when

gravity changes

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Page 9: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

MASS

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• 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

Page 10: Gravity. GRAVITY DEFINED Gravity is the tendency of objects with mass to accelerate towards each other Gravity is one of the four fundamental forces (interactions)

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

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