momentum starts with the letter "M" and has 8 letters, while force starts with the letter "F" and has 5 letters.
"Pressure" is an 8-letter word related to force that starts with the letter "f."
farcical
fakdihkh
Feeblish
friction
Try the word Flotilla.
furlough
Futurama
The fallopian tubes is a body part that begins with the letter F and has 8 letters.
fascinate
Forgive