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An experiment conducted by students in the College of Engineering at Southern Luzon State University to investigate the relationship between mass and acceleration, and to measure the acceleration due to gravity (g). The experiment involves dropping three balls of different masses from a height of 0.8 meters and measuring the time it takes for each ball to reach the ground. The data collected is then used to calculate the value of g and compare it to the theoretical value.
Typology: Lab Reports
Uploaded on 03/22/2021
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II. Theoretical Information The instant when the ball is released is considered to be the initial time t=0. The position of the ball along the meter stick is describe by the variable y. The position of the ball at a time t is given by y (t) = ๐๐ + ๐๐๐ + ๐ ๐
If the ball is released from rest, the initial velocity is zero ๐ฃ๐ = 0 Therefore, y (t) = ๐๐ + ๐ ๐
III. Objective/ Purpose Our objective in this activity is to investigate if the mass is dependable with the acceleration of the object. Also, to measure the height and to measure the time from its initial fall to the final fall, then calculate the acceleration of the object. Last, is to show how velocity and distance is accelerating when the time changes. IV. Materials Three (3) balls of different masses Meter stick Stopwatch V. Procedure
VII. Sample Calculation
VIII. Labeled Set โ up IX. Observation/Analysis The relatively close to the value of 9.8 m/s^2, which is the value of free-fall acceleration. The percent error for this experimental value of free-fall acceleration versus the actual is represented above. Using the stopwatch, we measure the duration of the three different sized balls before it hit the floor 4 times each. After that we observed the difference of every ball drop at the high of 0.8 meters. Lastly, we get the percent error as shown on the table above. X. Questions/Answers
1. What are the factors that influenced the acceleration due to gravity? How these factors affect the acceleration due to gravity? The factor that influenced the acceleration due to gravity is the location. On the Earth, gravity varies with latitude and altitude. The value of 9.8 m/s^2 is the acceleration due to gravity near the Earth's surface. The more massive the ball is also harder to move because of its greater mass, so it ends up moving at the same acceleration as the other ball. They are all accelerate at the same rate due to gravity, unless air resistance affects one object more than another. 2. A brick is dropped from the roof of a building. The brick strikes the ground in 2.50 s. Air resistance may be ignored, so the brick is in free fall. (a) How tall, in in meters is the building?
