What term is an inclined plane wrapped in a spiral around a cylindrical post?

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Multiple Choice

What term is an inclined plane wrapped in a spiral around a cylindrical post?

Explanation:
The screw is an inclined plane wrapped around a cylindrical post. That helical thread acts like a ramp that winds around the shaft, so when you rotate it, the screw advances or retracts along its axis, converting circular motion into linear motion. This is why screws are great for fastening or lifting—your turn translates into a small forward movement per rotation, determined by the thread’s pitch. The other options describe different simple machines: an inclined plane is just a flat ramp, a wedge is two inclined planes facing each other to split objects, and a pulley redirects force with a wheel and rope without a helical wrap.

The screw is an inclined plane wrapped around a cylindrical post. That helical thread acts like a ramp that winds around the shaft, so when you rotate it, the screw advances or retracts along its axis, converting circular motion into linear motion. This is why screws are great for fastening or lifting—your turn translates into a small forward movement per rotation, determined by the thread’s pitch. The other options describe different simple machines: an inclined plane is just a flat ramp, a wedge is two inclined planes facing each other to split objects, and a pulley redirects force with a wheel and rope without a helical wrap.

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