Using H2O, how can I explain the difference between intramolecular and intermolecular forces?

I’m looking ahead in my Chemistry book and found the question, and I was unsure how to explain it.

I know it has to do with hydrogen bonding between molecules (inter), but what about dipole-dipole?
And within a water molecule, are there hydrogen bonds or electrostatic forces of attraction between the hydrogen-oxygen (polarised) bonds?

I’ve studied for this and had understood it but I accidentally confused myself, so I’d deeply appreciate an answer for this!

NOTE: judging by differences in melting temperatures, I assume the intramolecular forces (whatever they may be) would be stronger?

Thanks in advance :D