Gravity affects the paper planes by pushing them downwards. It does not act only on paper planes. It also affects real airplanes.
no offence, but that was obvious.......
Design can effect paper airplanes just as it does real aircraft. Paper airplanes can be a huge variety of designs and be specialized, just as real aircraft. This can be for style orfor performance.
Yes, weight may affect paper airplanes, and this can be seen through a paper airplane's wing loading.
it is a glider
its cause of paper .
it makes it drop faster
Paper airplanes are made from paper.
Drag effects paper airplane just as it affects anything else that moves. It is either parasitic or induced on paper airplanes. Drag may reduce a paper airplanes speed and/or range.
if you place a paper clip on your paper airplane, you may find it improves performance by equalizing the load (weight) and lift (what the wings generate)
Gravity inhibits flight.
Paper airplanes are effected by aerodynamics just as anything else in the air is. Drag is encountered, and air resistance is related to this.