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Nanotechnology
The manipulation of matter on an atomic, molecular, and supramolecular scale.
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Nervous System
The network of nerve cells and fibres which transmits nerve impulses between parts of the body.
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Neurones
Nerve cells that receive and send electrical signals over long distances within the body
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Newton's First law
A body continues in its state of rest or constant velocity unless a resultant force acts on it.
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Newton's Second Law
The rate of change of momentum of a body is directly proportional to the resultant force acting on it and occurs in the direction of the force. (or F=ma ,where m = mass, a = acceleration and F=resultant force)
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Newton's Third Law
If body A exerts a force on body B, then body B exerts an equal but opposite force on body A.
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Nitrogen Oxides
Harmful gases which contribute to acid rain and global warming. They are emitted as a byproduct of fossil fuel combustion.
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Noise Pollution
Noise pollution or noise disturbance is the disturbing or excessive noise that may harm the activity or balance of human or animal life
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non-contact force
A force applied to an object by another body that is not in direct contact with it.
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Nucleus
A membrane-bound organelle within a eukaryotic cell that contains most of the cell's genetic material
