why are polar molecules called dipoles?

Answer 1

The polar molecules consists of two portions one is negatively charged and other is positively charged.but these portions are seperated by a distance & also these portions are responsible for the dipole moments and as the two poles are developed in the polar molecules so they are also called dipoles.
the polar molecules are used in dielectrics

Answer 2

Polar Molecules are called Dipoles because they exert 2 different charges which are seperate from eachother.

Where an Electron exist causes a Negative charge to arise and where an Electron does not exist causes a Positive charge to arise. In certain molecules like H2O, the molecule results in the Hydrogen side to be slightly positive and the oxygen side to be slightly negative. Thus arises a Polar Molecule.

Answer 3

First, I assume you know the electronegativity trend in the periodic table.

Polar molecules are called dipoles because of their unequal sharing of electrons. For example, HCl. Chlorine is in the far right of the PT and thus, more electronegative. It attracts hydrogen's electron making hydrogen slightly positive. Chlorine then becomes slightly negative due to the electron.

Answer 4

di means two
di-pole means two poles (like a magnet)