In order to do this you’d have to study what kind of feet, which are dactylic, iambic, anapestic, trochaic. Then read the phrases/sentences out load in order to determine the feet.
The answers are:
1. deeper meaning - DACTYLIC
2. noisily broadcasting. - DACTYLIC
3. by the light of the silvery moon - ANAPESTIC
4. I came, I saw, I conquered Gaul - IAMBIC