A Common Inclined PlaneStairs are an inclined plane because we follow an incline up from one floor to another. Other inclined planes are a slide or a ladder.
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WedgesA wedge is a moving inclined plane. You see wedges along any cutting surface, like those found in a pair of scissors or a hatchet.
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ScrewsA small inclined plane is spiraled around the outside of a screw. The plane bites into surrounding material, so a screw can hold two or more materials together with a lot of force.
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