Методичне забезпечення

Net force - the one force whose effect is the same as that of a number of forces combined

Neutrino - a neutral particle with very small mass that interacts very weakly

Newton’s first law - particle moves with a constant velocity (which may be zero) when no forces act on it

Newton’s law of gravitation - there is a force of attraction between any two point masses that is proportional to the product of the masses and inversely proportional to the square of their separation; the force is directed along the line joining the two masses

Newton’s second law - the net force on a body is the rate of change of the body’s momentum

Newton’s third law - when a body A exerts a force on body B, body B will exert an equal but opposite force on body A

Node - a point in a medium with a standing wave where the displacement is always zero

Non-renewable - sources of energy that are being used at a much faster rate than that at which they are being produced and so will run out

Notional emf - the emf generated when a conductor moves in a region of magnetic field

Nuclear fission - the reaction in which a heavy nucleus splits into two medium-sized nuclei plus neutrons, releasing energy