A wedge is a type of simple machine that is a variation of another simple machine, the inclined plane, which makes it easier to move something to a higher or lower location. However, wedges, made from two inclined planes, are used to cause separations. Shovels, scissors, axes, pick axes, saws and ice picks are all examples of wedges that push things apart.Know More
Other wedges that drive into materials and force them to split are chisels, jackhammers, bulldozers, snow plows, horse plows, airplane wings and bows of boats or ships. Though separation of materials is clearly involved, some wedges, such as staples, push pins, tacks, nails, zippers and doorstops, are ultimately used to hold things together.
When a wedge is narrow, or when it has a sharp point, it is more effective at separating things. For example, narrow fork tines force bits of food apart better than thick tines do. A knife is also a wedge, and sharper knives slice food with less effort. Needles are wedges that come in a variety of sizes and shapes in order to complete different tasks. It is inefficient to use a ballpoint needle, which is rounded, when working with densely woven fabric such as denim. A sharp-point needle pushes through the stiff material better.Learn more about Shapes
There are examples of pentagons in real life in man-made structures like the Pentagon in the United States, and also in nature in flowers like morning glories and okra. Other items, like home plates in baseball, are often in the shape of irregular pentagons.Full Answer >
There are many different types of quadrilaterals: squares, rectangles, rhombuses, trapezoids, parallelograms and kites. A quadrilateral defined as a closed shape (polygon) that consists of exactly four straight lines.Full Answer >
Examples of cylinders in everyday life include food tins, drink cans, candles, toilet paper rolls, cups, aerosol cans, flower vases, test tubes, fire extinguishers, plant containers, salt shakers and pencil holders. Other examples include chalk, lipstick containers, cooking gas cylinders, toothpick holders, thermos flasks and petroleum jelly containers.Full Answer >
Some examples of plane figures are triangles, rectangles, squares, rhombuses, parallelograms, circles, ovals, hearts, pentagons and hexagons. A plane figure is a flat figure with closed lines that stays in a single plane. The lines of the figure can be straight, curved or a combination.Full Answer >