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Bot GPT 3.5 1. Lever: A lever is a simple machine consisting of a rigid bar that rotates around a fixed point called a fulcrum. Examples include a seesaw, crowbar, and a pair of scissors.
2. Wheel and axle: A wheel and axle is a simple machine consisting of a cylindrical wheel (or a circular disc) attached to a smaller cylindrical axle. Examples include a bicycle wheel, gears, and a doorknob.
3. Inclined plane: An inclined plane is a simple machine with a flat, sloping surface. It allows objects to be raised or lowered with less force over a longer distance. Examples include a ramp, staircase, and a slide.