BC: Image Sources
FC: Simple Machines
1: By Garrett Hicks
2: This is an example of a wheel and axle pulley system. The wheel which can be applied in either direction is connected to a rotating shaft by an axle allowing for torque to wrap the rope around the shaft lifting whatever may be attached and in this case it is a bucket.
3: This is the core element of the pulley system because of its being a mediator with gravity allowing for output. This is an example of a compound complex pulley system because of its multiple interdependent pulleys.
4: This man-made land form is an example of an inclined plane because it still retains a flat surface despite being raised at an angle. This was Utilized by the Romans during their invasion of Masada.(c.70 BCE)
5: An Axe is a perfect example of a wedge because like other tools such as the saw it is meant to split a surface by dividing it at its sharpened tip.
6: All of the above items are examples of screws. They serve the same purpose of a wedge in the sense that they can divide a solid surface at its tip in order to make a hole.
7: Scissors are a perfect example of a lever because both handles are squeezed the blades at either end rise in opposing direction causing them to collide. All levers must have a point where weight can be beared over an axis and balanced out and for a pair of scissors that would be the bolt in the middle. By using the lever system the the work is made a lot simpler.
8: Picture Sources Table of Mechanicks, from Ephraim Chambers (1728) Cyclopaedia, A Useful Dictionary of Arts and Sciences, Vol. 2, London, p.528, Plate 11 English: Wheel&Axle, A Simple Machine, from A natural philosophy: embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in every-day life. George Payn Quackenbos, 1860. *All pictures were derived from en.wikipedia.org