Frequencies determine the size os a object. more low end, bigger, stronger is your object. But for a movie or a sound designnot always you need the powefull sound, but you need to the sound fits on the scene.
Avery simple way is to use a simple filter. A low-cut can make some magic.
A low cut is one of the most powerfull tools of a sound designer
See how using only a low-cut you can determine a size of a object with the same sound, cutting more or less!! Simple like this