Define and explain the 6 standard simple machines (Wheel/Axle, Screw, Inclined Plane, Lever, Pulley (or Block and Tackle), and Wedge)
Throughout history people have made devices to make work easier. The six simple machines are the most notable advances. These simple machines are the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge. These machines make work easier and more efficient.
The wheel and axle is the first simple machine I will talk about. The axle is a rod connected to someone that fits in the middle of the wheel and the wheel can freely and completely turn around the axle. The wheel and axle helps move things faster and more efficiently.
The lever. The lever consists of a beam and a pivot point.
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In a rack and pinion gear, a spinning gear wheel (the pinion) moves across a flat ladder or railroad looking bar (the rack). If the rack is fixed in place, the gear wheel is forced to move along it. If the gear wheel is fixed in place the rack moves up and down depending the direction of the the gear wheel rotation. they're also used in car steering systems, and weighing scales.
Define mechanical advantage. Explain the basic formula for mechanical advantage.
Mechanical advantage is the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine. All of the simple machines use this. The basic formula i s the mechanical advantage equals the amount of force used divided by, or over, the force of the object. An example would be moving something with a force of 600n, that has a force of 200n. The mechanical advantage would be 3. Explain the calculations (describe and show) for determining the mechanical advantage of each machine (including gears) assuming there is no friction.
With no friction the ideal mechanical advantage for a wedge is the ratio of L (the depth of the penetration by the wedge) over t (the amount of separation
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When the force is constant and along the same line as the motion, the work can be calculated by multiplying the force by the distance.
Explain how to calculate the work done by each of the simple machines
The six simple machines make work easier by transferring the force from one place to another, changing the direction of a force, increasing the magnitude of a force, or increasing the distance or speed of a force. In an inclined plane you overall, do more work, because if you moved an object that weighed 10n with a force of 5n. up a 4ft. long ramp to a ledge 2 ft. up, you multiply the force by the distance to get 20J (5x4=20), when if you had moved the object straight up it would be with a work amount of 20J as well (10x2=20). Depending on the size of the ramp, you could use more or less force when using the ramp. An inclined just spreads the amount of work across a longer period of time. The amount of work for a lever is determined by dividing the effort arm by the resistance arm.The resistance arm is the distance from the location of the resistance to the fulcrum or turning point.The effort arm is the distance from the location of the effort to the
To reiterate, let’s construct another example of two companies that produce oranges. Company number one is located in Florida where it’s the perfect environment to produce oranges. Company number two however is located in Toronto, which to be fair, isn 't a suitable environment to produce natural oranges, unless of course they’re produced in a green house. Although both companies are able to grow and produce oranges, company number one has the absolute advantage because they use the much cheaper and natural methods, hence the greater demand. This theory can be contradicted with the concept of comparative advantage, which in description means the ability to produce specific goods at a lower opportunity
...icycles, and heavy duty industrial machines all rely on common gears, and without different types of gears we wouldn’t be able to live in the modern society that is today. We know how they've helped us build modern civilization; it'll be exciting to see what they help us accomplish in the future.
Based on the data obtained, Figure 1 represents a force vs. time graph for the amount of force that was used to pull a wooden block across a table. As illustrated in Figure 1, the initial flat line in the graph represents the block at rest, this is where the forces acting on the object are the normal force, gravity, and the static frictional force. Force was then applied to the wooden block until it began to move, the point at which the block moves is the peak in Figure 1. This is the point at which there was enough force applied to the block to overcome the maximum static friction force. The graph then begins to decrease because once a force is applied to the object that is greater than the maximum frictional force, not as much force is needed to continue to pull
Having a ginormous force applied to the shorter end of the arm, while the load is on the longer end of the arm, and the point that the lever rests on is in the middle (the trebuchet arm could
According to Neumann, a force can be considered a push or pull that can produce, arrest or modify movement and can be measured as F=ma (Neumann, 2010). Force can also be considered the load. In regards to muscle contraction force relative to the joint, the force can be the internal force produced by the muscle itself, the force of gravity or the force of the particular load/weight. Torque is a cross product between force and the distance of the force from the fulcrum and is the ability of a force to cause rotation on a lever. Torque is a measure of how much a force acting on an
...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.
This would mean that at higher points the trolley would have more gravitational potential energy. This would be a good variable to investigate because we can use various gradients but it might be slightly difficult to measure some angles with the protractor. * Height of start position- this affects the motion of the trolley because as the height gets larger the trolley gains more gravitational energy. This would be a good variable to investigate because there are many heights we can use and it is also easy to
This hopefully adds some insight into the use of electric motors, and the principals of them that make these motors work. Such as electromagnetism, binary switches for DC motors, and the selection of a running frequency of a motor through the use of an oscillator.
The pulley, lever, and and wheel, although simple ideas, have a modern definition of engineering.
Throughout time, machines, no matter how simple or complex, have played a vital role in the development of civilization into the future. In other words, machines have played a part into helping our culture develop into what it has become today. This dates back to the beginning of time when early man used a stick and a fulcrum (rock) to make a simple lever.
One of the memories of my childhood I deeply cherish is that of my first visit to my father's small scale factory.Exploring the machinery which made my goal more easier and my dad sharing his experiences about the working of machines made me to grew up grossing my interest towards them. That was the time i chose to get into the field of mechanical.As a child, I was always intrigued by the working of complex mechanisms and equipment. I used to spend a lot of time trying to explore and figure out their principle. In school
Each of the six basic styles of robot used in industry today were designed with different applications in mind. Some of the robots were designed for assembly, others are more suited for simple pick and place applications, while a select few are capable of carrying heavy loads over a large area.
The introduction of machinery initiated the Industrial Revolution making factories an important way of life. The machinery in factories used the pow...
Electrical motors function by converting electrical energy into mechanical energy by using the energy stored in the magnetic field (Sarma, 1981). The mechanical energy (torque) is produced when opposing magnetic fields try to lineup. Therefore, the center line of the north pole of a magnetic field is directly opposite to the centerline of the south pole from another magnetic field (Fitzgerald et al., 1981). The opposing magnetic fields in a motor are generated by two separate concentrically oriented components, the stator and a rotor (Figure 2-5).