ABSTRACT
Moment of Inertia (Mass Moment of Inertia) - I - is a measure of an object's resistance to changes in a rotation direction. Moment of Inertia has the same relationship to angular acceleration as mass has to linear acceleration. In this practical, the weights was attached to the hanger in order to determine the mass of inertia of a flywheel then the experimental values will be compared with the theoretical values.
In this paper, the theory of mass moment of inertia are reviewed and discussed. The experimental results and theoretical values also included and discussed. Finally, comparison between the theoretical values and experimental values were discussed and deducted.
INTRODUCTION
The purpose of this experiment was to determine the mass
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Secondly was to attach the desired weights of the hanger at the end of the string. After that the string were wrapped on the shaft of the flywheel, by turning the flywheel until the hanger at the height of 0.9m i.e. y=0.9m from the base of the hanger to the floor. Also the string were coil closed to one another instead of on top of one another.
The wheel was release and the stopwatch was used to measure the time, t. once the weights hit the floor the time stop together with the flywheel.
This procedure were repeated 3 times with different height, which are 0.9m, 0.85m and 0.8m also with 3 different weight, which are 11N, 13N and 15N. Then each height/weight were done 3 times for the measurement of time and averaged to minimize error.
OBSERVATION AND RESULTS TABLE
Weight W, N Distance y, m 1st time t measured in s 2nd time t measured in s 3rd time t measured in s Average time t measured in s Experimental values Theoretical values
11 0.90 20.20 19.56 19.46 19.68 0.2391 0.2498
13 0.85 17.45 17.49 17.46 17.47
3. As engine speed increases above engagement, the primary clutch squeezes together some more and pushes the belt so that it moves to a larger radius on the primary. Because the two clutches rotate about fixed points, the belt gets pulled into the secondary, spreading it farther apart and moving the belt to a smaller radius.
The biomechanical principle stability for a pirouette is primarily concerned with the center of mass
In this experiment we positioned a marble ball on a wooden roller coaster positioned on a physics stand in the sixth hole. Throughout the experiment, we used an electronic timer to record the time of the marble where it passed through the light beam of its clamp. We positioned the clamp at a certain point on the roller coaster and measured the distance from the marble to the clamp; the height of the clamp; and finally the time the ball traveled through the clamp. After we recorded these different figures we calculated the speed of the marble from the given distance traveled and the time. We repeated the step 14 times, then proceeded to graph the speed and the height. Next, we took the measurements of position of the clamp, height, and speed and calculated the potential energy, the kinetic energy, and the total energy. Total energy calculated as mentioned before. Potential energy is taking the mass (m) which is 28.1g times gravity (g) which is 9.8 m/s2 times the height. Kinetic energy is one-half times the mass (m) times velocity (v2). Finally we graphed the calculated kinetic, potential, and total energies of this experiment.
When the eggs are dropped onto the pillow, the eggs will bounce a little and stay whole.
from the work surface, if any. Our results are set out below. Time (mins) : 0 - Height from bench (cm) -.. Temperature reached (d. c.). Water Volume (cm cubed).
...mpanies. The Structural Test Article simulated pressure on the vertical components during launch. After testing, Marshall concluded that the gap size was sufficient for both of the O-rings to be out of position. Again Thiokol rebutted Marshall’s claim by challenging the validity of the electrical components used to measure joint rotation. Thiokol believed that their test was superior to Marshall’s test, because it validated their conclusion. This is a fundamental problem know as experimenter’s regress. Since the true solution is unknown, the best test is the one that supports the experimenter’s view. Since this disagreement could not be solved between the two, the O-ring manufacturer was consulted. The manufacturer told the two that the O-ring was not designed for such high project specifications needed for the craft, but NASA decided to work with what they had.
To test this relationship an experiment will have to be performed. where the time period for an oscillation of a spring system is related. to the mass applied at the end of the spring. Variables that could affect T Mass applied to spring; preliminary experiments should be performed to. assess suitable sizes of masses and intervals between different masses.
There are many technicalities and terms associated with a successful device. Some of the main factors come from the materials used, and where they were used in the structure. Some are best used in one place, or another. All of this must be taken into consideration when deciding on how to best utilize the physics and forces applied to the boomerang. As it is a simple machine, it dominates in simplicity for a somewhat daunting task.
The Grade 12 Physical Science learners at Penryn College were tasked with carrying out an experiment to investigate the effect of collisions on momentum. Different mass pieces (500g; 1kg and 1.5kg) were dropped on a moving trolley and the learners observed the velocity of the trolley before the mass pieces were dropped on the trolley and the velocity after the mass pieces were dropped. The velocities were then compared.
Every day before sleeping, I record the exact time and collect them to show the effectiveness of certain methods. This experiment could be divided into 3 steps:
This summer when you go to weigh that fat juicy watermelon, think about the mechanics of how the scale works. The basket is attached to a spring that stretches in response to the weight of the melon or other objects placed in it. The weight of the melon creates a downward force. This causes the spring to stretch and increase its upward force, which equalizes the difference between the two forces. As the spring is stretched, a dial calibrated to the spring registers a weight. When designing scales one needs to take into account that every spring has a different spring constant (k). Bloomfield (1997) defines k as “a measure of the spring’s stiffness. The larger the spring constant-that is, the stiffer the spring-the larger the restoring forces the spring exerts” (p. 82).
F = ma : where F is force; m is the mass of the body; and a is the acceleration due to that particular force
The materials used: one wristwatch (with second hand), two variably indifferent humans (one male, one female), and a standard staircase at CCC. The method was simple: two test subjects were exposed to two trials involving one minute of physical activity and x minutes needed for the recovery of the heart rate. Before the experiment began, each subject's resting heart rate was taken. This would become the controlled variable. Next, each subject ran up one set of stairs at CCC, one stair at a time, for one minute. After one minute of activity, the subjects stopped and began taking his or her heart rate.
Chapter 14 obtain the principle of work and energy by combined the equation of motion in the tangential direction, ƩFt = mat with kinematics equation at ds = v dv. For application, the free body diagram of the particle should be drawn in order to identify the forces that do work. However, Chapter 18 use kinetic energy that the sum of both its rotational and translational kinetic energy and work done by all external forces and couple moments acting on the body as the body moves from its initial to its final position. For application of Chapter 18, a free-body diagram should be drawn in order to account for the work of all of the forces and couple moments that act on the body as it moves along the
Law two can be used to calculate “the relationship between an objects mass (m), its acceleration (a), and the applied force (f) is F= ma.” This formula is used in all of the above components in the car.