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GRAVITY GRAVITY

GRAVITY - PowerPoint Presentation

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Uploaded On 2017-10-04

GRAVITY - PPT Presentation

Gravity Gravity is a force that for us is always directed downwards But to say that gravity acts 
downwards is not correct Gravity acts down no matter where you stand on the Earth It is 
better to say that on Earth gravity pulls objects towards the center of the Earth So no matter 
wher ID: 592969

gravity earth objects force earth gravity force objects object heavy motion moon current attracts speed direction matter acts keeping means tides orbits

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Presentation Transcript

Slide1

GRAVITY

GravityGravity is a force that for us is always directed downwards. But to say that gravity acts 
downwards is not correct. Gravity acts down, no matter where you stand on the Earth. It is 
better to say that on Earth gravity pulls objects towards the center of the Earth. So no matter 
where you are on Earth all objects fall to the groundSee the diagram below:

What is gravity?

Gravity is a force that attracts objects together. On earth this force attracts everything to Earth.The strength of gravity.The Earth is a very large object and it is also very heavy. This means that it has got a strong 
gravitational field.The moon is smaller than the Earth and is not as heavy.Would you expect its gravity to be stronger or weaker than the Earth's gravity?

LO: I will describe the role of gravity as an 
attractive force between celestial objectsSlide2

GRAVITY

GravityGravity is a force that for us is always directed downwards. But to say that gravity acts 
downwards is not correct. Gravity acts down, no matter where you stand on the Earth. It is 
better to say that on Earth gravity pulls objects towards the center of the Earth. So no matter 
where you are on Earth all objects fall to the groundSee the diagram below:

What is gravity?

Gravity is a force that attracts objects together. On earth this force attracts everything to Earth.The strength of gravity.The Earth is a very large object and it is also very heavy. This means that it has got a strong 
gravitational field.The moon is smaller than the Earth and is not as heavy.Would you expect its gravity to be stronger or weaker than the Earth's gravity?

LO: I will describe the role of gravity as an 
attractive force between celestial objectsSlide3
Slide4

Gravity is responsible for keeping the Earth and 
the other planets in their orbits around the Sun; 
for keeping the Moon in its orbit around the 
Earth; for the formation of tides

Newton's First Law of Motion

Inertia means that an object will always continue moving at its 
current speed and in its current direction until some force 
causes its speed or direction to change. This would include an 
object that is not in motion (velocity = zero), which will remain 
at rest until some force causes it to move.Slide5

Gravity is responsible for keeping the Earth and 
the other planets in their orbits around the Sun; 
for keeping the Moon in its orbit around the 
Earth; for the formation of tides

Newton's First Law of Motion

Inertia means that an object will always continue moving at its 
current speed and in its current direction until some force 
causes its speed or direction to change. This would include an 
object that is not in motion (velocity = zero), which will remain 
at rest until some force causes it to move.Slide6
Slide7