Table 2: Acceleration due to Gravity with Varying Heights Height ti t tag 2y Table 2 Trial 1 2 Trial 2 Trial 3 Trial 4 Q
Posted: Mon Jul 18, 2022 6:02 am
- Table 2 Acceleration Due To Gravity With Varying Heights Height Ti T Tag 2y Table 2 Trial 1 2 Trial 2 Trial 3 Trial 4 Q 1 (307.47 KiB) Viewed 43 times
- Table 2 Acceleration Due To Gravity With Varying Heights Height Ti T Tag 2y Table 2 Trial 1 2 Trial 2 Trial 3 Trial 4 Q 2 (400.94 KiB) Viewed 43 times
- Table 2 Acceleration Due To Gravity With Varying Heights Height Ti T Tag 2y Table 2 Trial 1 2 Trial 2 Trial 3 Trial 4 Q 3 (400.94 KiB) Viewed 43 times
- Table 2 Acceleration Due To Gravity With Varying Heights Height Ti T Tag 2y Table 2 Trial 1 2 Trial 2 Trial 3 Trial 4 Q 4 (350.45 KiB) Viewed 43 times
- Table 2 Acceleration Due To Gravity With Varying Heights Height Ti T Tag 2y Table 2 Trial 1 2 Trial 2 Trial 3 Trial 4 Q 5 (350.45 KiB) Viewed 43 times
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Diyane Ul lecture! Introduction: In this lab, the acceleration of gravity will be studied. The accepted value of gravitational acceleration is 9.81 m/s? or 981 cm/s?. The results from both parts of this lab will be compared to this value. In part one, a 2m long airtrack will be inclined and a glider will accelerate down it. From the experimental measurements, the value for gravity can be determined. The magnitude of the acceleration down the incline will not be the value for gravity, but gravity does cause this acceleration. This acceleration will be determined by using one of the kinematic equations. a=g sine goose v=v2 +2aAx where the initial velocity is zero. The value for gravity can found utilizing the following equation by using the measured acceleration. g=sing where in the inclined angle in degrees For part two, a different apparatus will be used. Unlike the first apparatus, this one will measure gravity with a ball being dropped vertically. The timer will begin as soon as a ball is released, so initial velocity will be zero. The drop distance will vary and a graph will be used to determine gravity Ay=gtwhere Ay is the vertical distance the ball fell Procedure Part 1: Acceleration Due to Gravity Down an Incline. 1) Place the elevation block under one end of the 2m airtrack if it hasn't already been done for you. Measure the angle of the airtrack with an angle indicator or electronic angle finder. Record this angle in Table 1. Also, measure the sail width of the glider and record. 2) The photogate should be at the lower end of the airtrack. Place glider in the middle of the photogate and record its position, X2 (record the location of the back of the glider). 3) Remove, if any, additional side masses from the glider. Turn on the blower for the airtrack. 4) Place the glider close to the top of the airtrack and again record its position, Xı. Use the same reference in this step as you did in step 2. The difference between these two positions is the distance the glider travels, Ax.
0 Thu Hà on the smart timer and select Time star button. The smart timer is now ready t al mode if it isn't already and Stopwatch mode if it isn't already selected Press 6) Release the glider and be sure it doesn't sham into the bottom of the airtrack or through the photogate. Record the time. 7) Repeat steps 4 through 6 for trial 2 with a difference starting positon starting point at least 40cm from the start position in step 4. Record ference starting positon for the glider. Choose a ition in step 4. Record the initial position and time. 8) For Trial 3 and 4, add the two 50g masses to the side of the glider a Use the exact same two starting positions previously. Record positions and the side of the glider and repeat steps 4 through 7. 9) Determine Ax for each trial. Also determine the final velocity of the glider using the time and the sail width on the glider. line the final velocity of the glider for each trail by 10) Calculate the acceleration of the glider for each trail. This is explained in of the glider for each trail. This is explained in the introduction 11) Determine the value for gravity for each trial (also discussed in the introduction) and get the average of the four. They all should be very similar. 12) Determine the percent error between the experimental value for gravity and the actual value for gravity Calculations: Table 1: Acceleration Due to Gravity Down an Incline Sail Width Angle of airtrack, 0 - Ax X1 Trial %error g average
re Part 2: Acceleration Due to Gravity with Varving Heights. 1) Using the second free-fall apparatus, place the metal ball in the release mechanism. It should be over a meter above the receptor pad. Perform a test run to confirm that the ball will hit the pad once dropped. Release mechan Thumb 2) Place the ball back in the release mechanism and measure the distance from the bottom of the ball to the receptor pad. Dowel 3) Confirm that the Smart Timer is in Stopwatch mode (reset it if necessary). Press Start once the ball is now ready to be dropped. Release the ball by loosening the thumbscrew on the release mechanism. Record the time. The time should be around 0.5s. If the timer indicates a time of a few one-hundredths of a second, something went wrong. Suurt time 3) Perform another two runs to get an average time. Receptor 4) Lower the release mechanism by 10 or 15 cm, insert the ball, and remeasure the vertical distance. 5) Perform three runs and determine an average time. 6) Continue step 4 and 5 until an overall of four different heights are used. 7) For the last two columns of the data table, multiply the distance dropped by two and square the average times. These will be used to construct a linear graph on the graph paper provided at the end of the lab. 8) Graph 2y vs. 1. Create a proper graph using techniques from the Graphing lab. Determine the value of gravity from the graph and find the percent error between this measured value and the actual value for gravity % error = Calculations:
Table 2: Acceleration due to Gravity with varying Heights 2 Height hall Trial 2 Trial 3 Trial 4 Questions: 1) From part one, there should not have been any major difference in the measured value of gravity between each trial even though masses and distances where different. Why? 2) What are some possible experimental errors for part one? Be specific 3) In part 2, what did the slope of the line represent? Rearrange Ay g t to get g on one side and everything else on the other side. This was the reason why the drop distance was doubled and the time was squared. 4) What are some possible experimental errors in part two? Be specific