Ph1004 Lab1 Report

Data Tables and Observation: Fill out the data sheet (below) for the experiment and submit with this form. Recording data carefully

Describe the experimental method, state its advantages and disadvantages, and distinguish between independent and dependent variables.

Describe the experimental method, state its advantages and disadvantages, and distinguish between independent and dependent variables.

Measure the initial width, length, and thickness of the steel specimen using a Dial Caliper. Relieve pressure in Amatrol T9014 and adjust the height of the bottom platform to insert steel specimen. Insert one pin into the bottom platform to hold the steel specimen into the fixture. Slide two locking bars down the steel specimen. Adhere one locking bar to the bottom of the specimen and one at the top, lock them in place using the attached thumb screws. Insert the Linear Vernier Caliper in the top locking bar and zero out the caliper, allowing it to rest on the bottom locking bar. Compress the hydraulic cylinder until the indicator reads a force of zero. Lock the Linear Vernier Caliper in place by tightening the top thumb screw. [1] Compress

In order to find the vertex of f(x) = x² -6x +3→ I first need to find the x coordinate value of vertex.

If we measured in meters then a=4.9.) t is the time in seconds, v0 is the initial velocity of 30 feet per second, and s0 is the initial height or 4 feet. Thus we have:

The purpose of the experiment was met, as it allowed the experimenter to investigate how the vibrating source

For example, in order to find the average time from A to B for the distance of 0.10 meters, I did 0.1165+0.1120+0.1258=0.3543 and then I did 0.3543/3=0.1181 ,which I rounded up to 0.12 seconds.To calculate the final velocities for each average time from A to B, I took the distance the car traveled at sensor B (0.01m) and divided it by the average time through B. In order to find the final velocity for the first distance, 0.10 meters, I did 0.01/0.0083=1.20 (1.20 m/s). To calculate the acceleration I used the formula where you have to divide the velocity (delta v) by the time (delta t). Using this formula, I did 3.03/0.47=6.45 (6.45 m/s/s). When I did the percent change calculation between my initial velocity and my final velocity I had to subtract the initial velocity by my final velocity, divide by the initial velocity, and then multiply that answer by 100. For example, I did 3.03-1.20=1.83. Then I did 1.83/1.20=1.525 and 1.525*100=152.5.

In the method of continuous variations the total number of moles of reactants is kept constant for the series of measurements. Each measurement is made with a different mole ratio of reactants. A mole ratio is ratio between the amounts in moles of any two compounds involved in a chemical reaction. Mole ratios are used as conversion factors between products and reactants in many chemistry problems.

The second equation used in the lab, vx= x/t, was able to represent the relationship between the velocity of x and the x direction. The farther the ball traveled in the x direction, the greater the velocity of x was. This is obvious due to the fact that time was a constant value of 0.44 s, so as the number multiplied to 0.44 s increased, so did the product (velocity of x).

the sum of its speeds in each time step and dividing by 3000. Density was measured

Procedure: In this lab, a piece of clear plastic with evenly spaced black bars, called a picket fence, was dropped repeatedly through a Photogate that was connected to the Capstone software in the computer. The software’s interface allowed the picket fence’s acceleration and velocity to be recorded and graphed. The Photogate has a beam of light used to detect an object passing through. Upon dropping the picket fence, the software’s interface will measure the time from the leading edge of one black bar blocking the beam until

This lab was about the Atwood machine, a system consisting of a pulley in the air with a length of string running through the pulley and different masses on either side of the string. We had pulled the lighter mass to the ground, suspending the heavier mass in a known height that we had measured and recorded off the ground. We timed with a stopwatch the time it took for the heavier mass to hit the ground. We performed five trials for each of the three mass differences and calculated an average measured acceleration for each of the three. We detirmed the Atwood formula, A= g(m2-m1)/ (m2 + m1), which allowed us to find a theoretical acceleration using the masses of the two different masses, to be used to compare to our measured accelerations.

The statistical approach to experimental design is necessary if we wish to draw meaningful conclusions from the data. Thus, there are two aspects to any experimental design: the design of the experiment and the statistical analysis of the collected data. They are closely related, since the method of statistical analysis d depends on the design employed.

Abstract - Kinematics of linear motion is defined as the studies of motion of objects without considering the effects that produce the motion. This experiment will show how to determine the linear motion with constant (uniform) velocity particularly the dynamic cart and linear motion with constant (uniform) acceleration, (e.g. free fall of motion). At the end of the experiment we found out that the velocity is a speed that involves direction of an object as well as the time. While for the acceleration, it is directly proportional to the distance or height but inversely proportional to the time. By close