Q: Answer the following question given this paragraph: The spiral staircase in Figure below also contains an inclined plane. Do you see it? The stairs that wrap around the inside of the walls make up the inclined plane. The spiral staircase is an example of a screw. A screw is a simple machine that consists of an inclined plane wrapped around a cylinder or cone. No doubt you are familiar with screws like the wood screw in Figure below . The screw top of the container in the figure is another example. Screws move objects to a higher elevation (or greater depth) by increasing the force applied. Q: Screws move objects to a higher elevation by increasing what? A:

[+] velocity
[+] torque
[+] kinetic energy
[+] force applied
A:
force applied