• How Did The Actual Mechanical Value Compare To The Ideal Mechanical Advantage?

To verify the relationship between the mass of an object (among three objects) and the lever arm of one of the other objects on a seesaw according to their torques.

On a larger scale, the example of a Lego made motors efficiency can relate to that of a modern day car and the efficiency / energy waste that comes from it. The internal combustion engine is an engine in which the combustion of a fossil fuel mixes with air in a chamber of the operational fluid flow circuit.

The experiment concluded that the center of gravity of the meter stick did not change although the equilibrium was required to be re balanced once the masses were added. Depending on the mass at one end the distance further away from the center changed. If the mass on one side was greater than the mass on the opposite side the clamp from that side would have to move further away from the center in order to recover the equilibrium. There was a slight percent difference when the torque for both sides were calculated. The cause of this may have

#1. We added an extended lever arm to increase the distance of the car. We put the lever arm on, because the bigger the arm, the less force required. The larger the lever arm , the less force is required to pull the string. On our car we originally had no lever arm, when we put the arm on, the cars distance changed due to the less force required to pull the string and that means

Examine the apparatus. The top measurement device is the force sensor and will be connected into A analog input of the Science Workshop interface.

There are two main class levers being used during the lift. The 3rd Class lever is being used towards the lower part of the back since the athlete is bending over. The fulcrum is the lower part of the back, while the MAF is the shoulder area and the MRF is the barbell itself. The barbell is causing resistance in the opposite direction of the lift. Another lever that is being used is the 1st Class lever. This lever is being used twice in this lift. The first time is in the arms, the elbows are the fulcrum while the shoulder areas are the MAF and the barbell is the MRF. This structure also applies in the legs. The knees are

Mass of the Fulcrum Clamp: _________________(grams) Mass of Clamp with V-wire: ________________(grams) Mass of Weight Hanger: __________________(grams) Balancing point (center of mass) of meter stick, x0 = ____________(cm) Values Case 1 m1 = 100 g m2 = 200 g x1 = 15 cm x2 =_________ Moment (lever) arms r1 = ___________ r2 = ___________ Results *(see note above) τcc = ___________ τcw = ___________ % Diff. __________ Case 2 m1 = 100 g m2 = 200 g m3 = 50 g

scale. Use the pulleys to raise the load 10 cm. Measure and record the force

the arm on the catapult. My independant variables are the items and their different weights

A study conducted by Toshiki Kobayashi, Madeline L. Singer, Michael S. Orendurff, Fan Gao, Wayne K. Daly, and K. Bo Foreman and published in the journal of Clinical Biomechanics aimed to describe the relationship between the plantarflexion resistive moment of an articulated ankle–foot orthosis (AFO), a piece of corrective footwear, and the angles and moments of the ankle and knee while walking, in order to better aid patients post stroke. The major driving force of the study is that many patients who have suffered a stroke have resulting difficulties with mobility due to changes in their gait and muscle strength. This study suggests that there can possibly be a better designed and more personalized AFO to decrease unpleasant side effects of AFO use, such as pain and limited mobility.

The further the muscle is stretched the bigger the force it exerts. This is a linear effect.

The beam was loaded the mid-length in 2.745 lbs. increments up to 6.745 lbs. The change in clearance of every load step was measured and data was recorded.

Henri Bergson believes “mechanical inelasticity” (Bergson ) is essential to laughter. In Chaplin’s movie Modern Times, there are many illustrations of such technique that not only composes humorous but also contribute to its theme—capitalists exploit low social status workers.After giving the very basic elements of laughter:—lack of emotions, connection to human traits, relationship to social context —Bergson introduces mechanical inelasticity as the main cause of his main idea regard to laughter. Inelasticity is rigidness. When people are insensitive to changes and remains the last state of their bodies, their bodies are lack of elasticity. The example provided by Bergson is when someone falls, the person may fall because he or she fails to

For this method the ring should be centered over the post when the system is in equilibrium. So we tack the center post down so it will flush with the top surface of the force table and it will be no longer comptent to hold the ring in the position. We also pulled the ring slightly to the one side and release it to enable to inspect that the ring returns to the center. Then if not, adjust the mass or/and the angle of the pulley until the ring constantly returns to the center when it is pulled slightly to one side.

Below are two tables in which I have recorded the data which I obtained during the experiment. The first table reflects the Relationship between the deflection/flexion of the cantilever and the mass of the load and the second table reflects the relationship between the flexion of the cantilever and the length of the cantilever.