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Moments and motion


A moment is the turning effect of a force
Even if forces are balanced and do not cause an object to change speed, the object can still
Right angles get the biggest moment.
If the object is not moving, the anticlockwise and clockwise moments are…

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Moments and motion

Gravitational attraction

The orbit of a planet around the sun is an ellipse
The bigger the masses of the bodies the bigger the force of gravity acting between them
Gravitational force provides the centripetal force

Artificial satellites were sent up by humans:

Geostationary orbit Low polar orbit…


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