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Forces and Motion
What are Newton's Laws of Motion?
Newton (1643 - 1727) changed
that people understood forces and motion.
sense" view (developed in
said that a single force is needed to sustain motion.
This means that if you want to keep a bicycle moving on flat ground,
then you have to keep pedalling or it will slow down and stop.
Newton changed this
showing that ideas of balanced and unbalanced forces
were better at explaining how objects moved.
The three laws of motion are given below in plain English.
If the forces on an object are balanced then it will carry on as it is.
If the forces on an object are unbalanced then
the resultant force will cause the motion of the object to change.
The bigger the force, the bigger the change in motion.
When two objects push or pull against each other,
the forces that they feel are equal and opposite.
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