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Gravity

Gravity . Gravity is a force of attraction between objects, that is due to the masses of the objects. Definition. Law of Universal Gravitation.

elizabeth-cochran
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Gravity

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  1. Gravity

  2. Gravity is a force of attraction between objects, that is due to the masses of the objects. Definition

  3. Law of Universal Gravitation • This law mathematically describes the relationship between the strength of gravitational force between objects, the masses of objects and the distance between the objects. • F= Gm1m2/r2

  4. Law of Universal Gravitation • Part 1: Gravitational force depends directly on the objects’ masses. • The more mass objects have the greater the gravitational force between them. • This explains why there is a large force on objects due to the Earth. The Earth has a huge mass.

  5. Law of Universal Gravitation • Part 2: Gravitational force depends inversely on the distance between the objects. • The farther apart 2 objects are, the less the gravitational force between them.

  6. Weight • Weight is a measure of the gravitational force on an object.

  7. Mass • The amount of matter in an object. • Gives information about how difficult it is to change an object’s motion. • Is not affected by gravity.

  8. Compare/Contrast Weight and Mass Mass Weight Amount of matter Force of gravity Affected by gravity Measured in grams or kilograms If mass increases, then weight increases as well. Measured with a spring scale Measured with a balance Measured in Newtons Same on the moon Different on the moon

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