bflynn
Final Approach
You'll experience ground effect as an unwillingness of the wheels to settle down if you come in with too much airspeed. If you push the nosewheel down to try to force the airplane onto the runway, very bad things will happen, so don't do that.
also, when going faster, your pitch is more nose forward. The bounce can be the nose wheel hitting frost and rebounding or it can start with the mains bouncing. Either way, it starts because you have too much energy. As you crest, you run out of energy and on the second one, the nose will almost always touch down first.