Activate Gravity at Frame X So I'm looking to have some text come crashing down. I have a cell fracture enabled and gravity starting disabled however, as I'm very new to blender, I don't have any clue on how to make the gravity only start to effect it at say frame 40. Would love any help!
You can do this by keyframing the Gravity checkbox in Properties>>Scene>>Gravity.  

1.) Select frame 40 and keyframe the unchecked checkbox by pressing i or by right clicking and selecting "Insert Keyframe".

2.) Go to frame 41 and keyframe the checked checkbox by pressing i