Lab 1 helps create a better understand of the changes in crystal structures when the annealing and quenching process is applied to 1020 and 1080 steel. The numbered steel refers to the ASTM grain-size number. Formula 1 is used to solve for the grain size. n=2^(G-1) Equation (1) at 100x magnification Crystal structures change shapes which changes the strength of the material and its properties. The metal might become soft, brittle, hard, or ductile.
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One big error was the inaccurate information. The error mainly had to deal with the type of rocks used in the experiment. The lava rocks did help but easily fractured into sediments. So it was difficult to gather accurate weight after the trial was done because all of the small sediments couldn’t be gathered and weighed. If this experiment is to be done again in the future, it would be best to change the type of rock that is used in the experiment.
The actual data is the result on our experiment vs theoretical, which is based on the calculations above. I have also learned to pay more attention to draining out all of the product completely before continuing to test the experiment, as any small drop of contaminant can veer our results into a different
On Tuesday in lab, we were first asked to brainstorm ideas for clocks. Some of the things we thought of that could be used as a clock were a simple pendulum, sun dial, your pulse, and drips from a leaky faucet. Then, we spent the rest of our time testing out the drippy faucet idea by poking a hole in the bottom of a cup, placing it above a graduated cylinder, filling it with water, and timing how long it took for the drips to fill up 10mL. While the hole was dripping out water, we had to continually put more water in the cup so that the pressure was consistent throughout the entire experiment. If we did not do this, the water could drip faster or slower depending on how much water was in the cup. We tested the amount of time it took to get
Have you ever wondered how the laws of gravity effects an object? This is a question that many people may have pondered, because nothing really explains in detail about it other than elementary explanations. I like to do science experiments in school and I also enjoy history, mainly militaristic, and this is a topic that interests me to try to solve it with experimentation. I believe that learning more about Newton’s Laws of Gravity and Motion may help to explain why a trebuchets counterweight and projectile weight are directly related to the distance fired by the trebuchet.
Anthony Smith 12//19/15 Marshall’s Crew Math High Dive Write Up Just things to keep in mind: – The radius of the Ferris wheel is 50 feet – The center of the Ferris wheel is 65 feet of the ground – The wheel makes one complete turn every 40 seconds at a counter clockwise direction. – The cart starts 240 feet to the left of the center (-240) – The cart travels at 15 feet per second – The platform he is standing on is at the 3 o’clock positions when the car starts to move The equation for his height at anytime on the wheel: 65 + [50sin(9T)] =
Does the type of battery used to create a motor affect the time the motor spins? If the type of battery affects the amount of time the coil spins then the D-battery powered electric motor will spin for the longest period of time. The procedures were to create the motor and find a spot for the motor to spin. You also needed to keep track of the time the motor spinned. When the motor stops spinning record the time on a data table.
This increased afterwarp continues on both objects. Acceleration is caused by force. This theoretical force has a remarkable similarity to gravitation. “Gravitation Concept” will assume that we have finally found the source of gravitation. If “Gravitation Concept” can be established, then the “pressurewarp” cause of gravitation will finally be understood.
Introduction In the lab “Gravity Demos,” the common objective is to learn more about gravity and the center of gravity by performing various experiments. The definition of gravity is an attraction between any objects that have mass. Every planet has a gravitational pull, for example, earth’s gravitational pull is 9.8 meters over seconds squared (9.8 m/s2). This means that a bowling ball and a feather would fall at the same speed and hit the ground at the same time if there wasn’t air resistance (a force that slows down objects that move through the air.)
But the difference was no bigger than 0.08, and after the values were rounded the same empirical formula was deduced. So the experiment can be concluded as successful. Evaluation: The method used was simple and easy to follow; however, it did not include how much oxygen was needed to react completely. Also it didn 't mention what magnesium oxide looked like after it finished reacting, so it was a guesswork of determining whether the reaction was finished or not.