Flashcards
Science - Gravity - Earth and Space
Cards in this deck (11)
- 1What is gravity?Gravity is a force that pulls objects words each other.
Every object in the universe that has mass has a gravitational force. - 2Who theorized the Law of Gravitation 1687?Sir Isaac Newton
- 3How did he realize that gravity acts everywhere in the universe?He was sitting under an apple tree and an apple fell on his head.
- 4What 2 factors does gravity depend on?1. The mass of the objects
2. The distance between the objects - 5The more massive the objects......the greater the attraction
- 6The closer the objects......the greater the attraction
- 7What holds our solar system together?The sun's gravity
- 8What is mass?Mass:
-A measurement of the amount of matter that is in an object
-Measured with an electronic balance
-SI unit of mass is Kg - 9What is weight?Weight:
-Mass x Gravitational pull
-Weiht is how much gravitational pull is on an object
-Depends on the mass of the objects and their distance from each other.
-Measured with a spring cycle
-SI unit of weight is Newtons - 10Mass VS Weight-Weight is not equal to Mass
-Weight = M x GP
-Weight varies with strength of gravitational force - mass doesn't
-On earth 1Kg (mass) weighs 10N (weight) - 11Earths gravitational pull is.......9.8 meters/second every second
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- Grade 8 Science Flashcards on Science - Gravity - Earth and Space, created by Isabella Rutenberg on 02/06/2017.
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- Isabella Rutenberg
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