What are the differences between scalar and vector quantities?

[libertylovescie]

Hmm... I don't know the differences between the scalar and vector quantities? Help, please? I don't want to fail physics!

 

[Astronuc]

Scalar quatities, e.g. temperature, mass, charge and energy, have magnitude and are not directionally dependent.

Some more examples of scalars here - http://en.wikipedia.org/wiki/Scalar_(physics)
see also - http://en.wikipedia.org/wiki/Scalar_(mathematics)

Vector quantities, e.g. velocity, momentum (mass*velocity), current, acceleration, etc have a magnitude and direction.

More discussion on vectors - http://en.wikipedia.org/wiki/Vector_(physics)

 

[libertylovescie]

Wow, thanks. You rock crazy science dude!