Simple Machines
Definitions:
Machine- A device that makes work easier by changing the speed , direction, or amount of a force.
Simple Machine- A device that performs work with only one movement. Simple machines include lever, wheel and axle, inclined plane, screw, and wedge.
Ideal Mechanical Advantage (IMA)- A machine in which work in equals work out; such a machine would be frictionless and a 100% efficient IMA= De/Dr
Actual Mechanical Advantage (AMA)- It is pretty much the opposite of IMA meaning it is not 100% efficient and it has friction. AMA= Fr/Fe
Efficiency- The amount of work put into a machine compared to how much useful work is put out by the machine; always between 0% and 100%.
Friction- The force that resist motion between two surfaces that are touching each other.
What do we use machines for?
Machines are used for many things. Machines are used in everyday life just to make things easier. You use many machines in a day that you might take for granted. For example a simple ordinary broom is a machine. It is a form of a lever. Our country or world would never be this evolved if it wasn't for machine. Almost every thing we do has a machine involved. We use machines to manufacture goods, for transportation, ect.
In the W=F*d equation the trade of between force and distance is as you use a machine the force goes down and distance goes up. If there was no friction they would be equal and trade.
There are six simple machines. They are a lever, pulleys, inclined plain, wheel and axle, screw, and wedge. The lever is used very often an example of a lever is a broom. Your hand is the fulcrum and when you sweep it is a lever. A lever consist of a fulcrum, effort, and resistance. A pulley is used to lift or pull objects with a advantage. To get a advantage it matters how many lines are going to the load. For example if there is 3 lines to the load it is a 3/1 advantage. A inclined plain is used to lift an object easier but with more work.
Instead of lifting it straight up you push it a greater distance but with less force. A screw is a inclined plain wrapped around a cylinder post. Its like a ramp around the screw.
A wedge is a inclined plain with one or two sloping sides. Chisels, knives, and ax blades are examples of wedges.
IMA is ideal mechanical advantage meaning a frictionless world with 100% efficiency. It is saying that work in and work out are exactly the same.
That action is known as force. A force is something that acts on an object while it is either in motion or at rest, and tends to overcome the inertia inherent of either state. (https://www.britannica.com/science/force-physics), Sir Isaac Newton’s first and second laws of motion explain how the force acts on an object and how it affects its
compression. In a hollow bat, however, the bat barrel compresses somewhat like a spring, when
technology. Today, many tend to believe that technology will ruin mankind in the future, but
The evolvement of machinery represents an expansion of human capacities; human control increases over the environment through the ability of production of increasing range and exactitude of response. But the technical development that the control over the machine need no longer be on its operator. This possibility is seized upon by the capitalist mode of production and utilized to the fullest extent. Both of these interests must be antagonistic. The people in charge need to come together and put both of these interests together. These people of higher standard need to come up with a way to bring the special needs of those who own the machine and the labor power, and also the ones who bring the machine and the labor power together.
Laws such as the lever law and Euler’s Buckling Theorem come into play when testing and competition begins. A structure of wood and glue surely has much more to offer than meets the eye.
From Ancient Mesopotamia came a revolutionary tool that has crystallized the world into the complex civilization it is today, the wheel. The wheel has commutated the very way we live and think about the world and all credit goes to Ancient Mesopotamia for providing this life changing invention. Wheels are everywhere we look and in places that you wouldn't even think. Wheels are used everyday in some way or another and come in many sizes and innumerable different materials and purposes. This prodigious invention has helped ancient Mesopotamians work, move, and live and still helps us today.
...hese complex machines make work easier for us. Simple machines are also useful. For one they make up all complex machines. They also make work more manageable.
is connected to a shaft, which spins a disc. The disc has holes in it
These reels usually have a series of gears that turn the line collecting devices several times for each crank of the handle.
Gears, also known as cogs, sprockets, ratchets have existed since the invention of rotating machinery, providing machines with constant mechanical advantages increasing torque or speed of the shaft. Some of the fist gears developed were wooden pegs fitting onto slots. These setups were often greased with animal fat or wax to allow smooth operation.
Weight is one of the opposing forces to lift. From Newton's second law, the weight of an object is the magnitude of the force of gravity on that object.
plane and a boat's sail lifts and pushes it forward. Imagine the sail of a boat
Water and well pumps are utilized to draw water from a profundity where the water table is a few feet underneath the range of provision. Regularly utilized for water conveyance. Hand pumps are physically worked pumps; they utilize human force and mechanical playing point to move liquids or air starting with one spot then onto the next. They are broadly utilized as a part of each nation on the planet for a mixture of mechanical, marine, watering system and recreation exercises. There are numerous distinctive sorts of hand pump accessible, fundamentally working on a cylinder, stomach or turning vane guideline with a check valve on the section and passageway ports to the chamber working in restricting bearings. Most hand pumps have plungers or responding cylinders, and are sure relocation.