Explore experiments

Do heavy things fall faster?

Three balls, the same size, weighing 50 g, 1 kg and 20 kg. There is no air in this room. Watch them all the way down and note when each one passes the marks on the wall. Then put the air back, one notch at a time, and watch the light one give up first. Nothing was rigged: the same gravity acts on all three, and the reason your intuition says otherwise is standing in the room with you the whole time.