Physics Lab Report - What Keeps a Stopper Moving in a Circle

4.) Have one person reading the ammeter, one person timing the weights reaching the top of the motor, and the

We set up 3 fermentation set-ups, labeling them 1, 2, and 3. Then, filled a tub with hot water and inserted the end of the plastic tubing into one of the test tubes and submerged the collection tube and plastic tubing in the tub. After that, we mixed the fermentation solutions for the other tubes, (tube 1 got 4mL of water and 3mL of corn syrup, tube 2 got 3 mL of water, 1 mL of yeast and 3 mL corn syrup, tube 3 got 1 mL water, 3 mL yeast and 3 mL of corn syrup) . We then mixed each test tube and put the rubber stoppers in the fermentation tubes. Finally, we marked the water level on each collection tube with a wax pencil to use as the baseline. Then at 5 minute intervals we measured the distance from the baseline for 20 minutes.

This experiment has, in fact, proven my hypothesis to be incorrect, after looking through the results, I now understand why. My hypothesis stated that

1. Move the lid of the container up or down. Record the resulting volume and pressure

The purpose of this experiment was to create a model that showed the motion of a spinning body and to test the accuracy of said model. The model was created by calculating the measurements of the orbital period of a stopping mass for six varying mass ratios and then comparing them to the model equation derived from the equation for centripetal force. The primary results of the lab were in agreement with the predicted values, therefore our degree of confidence in our data was high.

Introduction: The acceleration toward the center that keeps objects in uniform circular motion (circular motion at a constant speed) is called centripetal acceleration. An understanding of centripetal acceleration was one of the key elements that led to Newton’s formulation of the law of universal gravitation.

The objective of this lab was to explore the behavior of centripetal acceleration and identify the relationships between the acceleration and several forces acting on the object.

Loosen the retaining screw and adjust the horizontal arm to the dimple that produce the 2nd largest radius between the spinning mass and the rotating shift. Allow the spinning mass to hang straight down, without being connected to the spring. Position the pointer directly below the tip of spinning mass and secure the pointer to the base. Use the scale located on the base to determine the radius, r, of the pointer from the rotating shaft. Record this value onto Data Sheet A. The experimental uncertainty in r is estimated to be the width of the spinning mass tip – approximately 0.2 cm.

Circular motion is one of the fundamental building blocks for understanding the physical world because it is so common. This interactive lets you examine the basic ideas of kinematics and forces for objects moving in circular motion.

Winthrow’s research incorporates atypical variables into his study, that other researchers did not incorporate, such as: duration of stop, physical resistance during the stop, number of

6. The outflow rate is measured by using a measuring cylinder. It is measured 3 times and averaged for a more accurate result. The results are shown in Table 2.

Measure the length of the string from the ring stand to center of mass of the stopper. It should be around 10cm. Record this length in the data table.

A volumetric pipette & measuring cylinder can be calibrated by just weighing the water they deliver. As for volumetric flask, the weight of an empty flask is recorded. Next, weigh the flask after filling it with water to the mark.

The goal of this experiment was to show the difference in centripetal velocity of the rubber stopper as the weight changed between the rubber stopper, Msb, and the circular weight, MH. Centripetal force is the net force pointing from the body toward a fixed center of curvature. In other words, centripetal force can be defined as the net force that is central seeking and radial, causing a curved motion to an object. The objective of this experiment is to study motion, with the concept of centripetal force of a spinning object on the end of a string. As the string rotates around the apparatus the string follows the

It is evident that the physical parameters, such as the Coriolis rotation ( (-- removed HTML --)