Syllable Stress

We do not say each syllable with same force or strength. In one word we accentuate ONE syllable .
Lets take 3 words. Photograph, Photographer and photographic.They do not sound the same as we accentuate different syllables in all the 3 words.
In Photograph the stress is on PHO
In Photographer the stress is on TO
In photographic the stress is on GRAPH
Words get mispronounced due to wrong syllable stress