Abstract The glass transition temperature of polymethylmethacrylate ( PMMA‚ Perspex) is measured using static and dynamic method while the glass transition temperature of rubber of different size is measured using only dynamic method. The glass transition temperature Tg of Perspex is found to be 90°C using the static method and 160°c using the dynamic method. On the other hand‚ the Tg of rubber is found to be -30°C. Introduction Perspex is a type of amorphous polymer and has the following
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Taki Simadiris p1 Brierly Post-lab a. If you did not wash all of the Calcium Carbonate out of the beaker and into the filter during step 5‚ would your percent yield be larger or smaller? If you do not wash all of the Calcium Carbonate out‚ then the percent yield would be smaller because there is enough calcium carbonate left in the beaker that would have attributed to the final yield. b. If you used tap water instead of DI water what do you think would happen? Why? If you used tap water‚ the coffee
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Pre-lab: Newtons Three Laws of Motion: There are three laws of motion that have been stated by Sir Isaac Newton during the sixteenth century that are looked upon even today. The first of these laws states that an object will stay in at rest or in a constant velocity unless a force acts upon it. In simplest terms this means that if u place an apple on the table it isn’t just going to roll off. The second of these laws states that when a force acts upon an object it causes it to accelerate
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Kyle Brooks 11/13/12 Angry Birds Projectile Motion Lab How to Perfect Distances Of Birds using Launching Angles Purpose: The Purpose of this Lab is to discover which launch angles give the birds the longest and shortest time in flight. Hypothesis: I believe that the bird will launch the farthest at the 45 degree angle because that’s exactly half of 90 degrees which will give it the maximum height in comparison to length. I also think that the bird will launch the shortest at 0 degrees
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Conclusion to Motion Lab Kerreon Wright 3rd Period Ms. Gislason The purpose of this Motion Lab was to find the acceleration of a steel marble going down a straight track six different times to figure out how an object’s mass affects acceleration. It doesn’t due to Newton’s second law of motion. There were six different accelerations for each trial and they are: 7.88 m/s squared‚ 6.78 m/s squared‚ 6.07 m/s squared‚ 5.57 m/s squared‚ 4.32 m/s squared‚ and 5.11 m/s squared. It’s possible
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LAW TONG &AIDEN 2013/9/23 AP PHYSICS B Mr. Moss THE LAB OF ATWOOD Procedure: The purpose of this experiment was to verify the predictions of Newton’s Law for an Atwood machine‚ a simple machine constructed by hanging two different masses and from a string passing over pulleys and observing their acceleration.. Newton’s Law predicts that the acceleration should be proportional to the difference between the masses and proportional to their sum‚ where = 9.8 m/s2 is the
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Projectile Motion PHYS111 Formal Report 2 University of Canterbury Campbell Moulder Abstract The force of gravity is said to be a constant of 9.81 ms-2 (3). This can be proved by measuring the projectile motion of a bouncy ball and plotting a ∆Vertical Velocity vs. Time graph‚ the gradient of which should equal the constant force (acceleration due to) of gravity. Our gradient value of 10.26±0.49 ms-2 is consistent with the actual value of 9.81 ms-2. Introduction A projectile is an
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Projectile Motion You have probably watched a ball roll off a table and strike the floor. What determines where it will land? Could you predict where it will land? In this experiment‚ you will roll a ball down a ramp and determine the ball’s velocity with a pair of Photogates. You will use this information and your knowledge of physics to predict where the ball will land when it hits the floor. [pic] Figure 1 objectives * MEASURE THE VELOCITY OF A BALL USING TWO PHOTOGATES AND
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Purpose/ Hypothesis: The purpose of the lab is to explore some of the variables that influence projectile motion using a Rubber Band Cannon and launching rubber bands and measuring its horizontal distance and angle at which the rubber bands has been launched.. Materials: Materials used for the lab were a Cardboard Box‚ a 30cm ruler‚ rubber bands‚ a measuring tape‚ tape‚ a pencil‚ a paper protractor cut out‚ and scissors. Procedure: For the lab‚ scissors were used to cut the paper protractor cutout
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Experiment 1.7: Graphical Analysis of Motion Introduction To graphically analyze motion‚ two graphs are commonly used: Displacement vs. Time and Velocity vs. Time. These two graphs provide significant information about motion including distance/displacement‚ speed/velocity‚ and acceleration. The displacement and acceleration of a moving body can be obtained from its Velocity vs. Time graph by respectively finding the area and the slope of the graph. Data Tables – Part I Displacement
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