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kinemtic

## Simplest examples of displacement and distance (quick review)

Displacement: is a vector quantity that connects the initial and final positions of a moving object by the shortest line.  Distance: is a scalar quantity that measures the lengths of the total p ...

Magnetism

## Magnetic field Lines

The space around a magnet where the forces of attraction or repulsion on a magnetic object can be detected is called magnetic field.  Magnetic field around a magnet or other magnetic object ...

Magnetism

## Difference between electric and magnetic forces

(1) Electric force does work on a rest or moving charge but magnetic force does only work on moving charge.  (2) The electric force vector is along the direction of electric field $\vec E$, ...