1 Why does changing the shape of an object have o effect on the density of that object?2 Aluminum is used to make airplanesCast iron is used to make weightlifting equipmentExplain why the densities of these metals make them useful for these purposes??OMGGif you answer these questions, you don't know how much I would appreciate it! Thanks in soooooo much advance! :P
1) It's the same amount of stuff stretched out over a wider area(Think of Bubble Gum - it's more dense when is a little ball, but no matter how you stretch it out it has the same amount of gum in it.) 2) Aluminum is much less dense and much lighter than Iron.
