![]() In this lab you will be using Atwood’s Machine to measure the acceleration due to. The gravitational force of the Earth causes all objects to be accelerated towards the center of the Earth. ![]() THEORY The force of gravity affects all massive bodies. Considering pendulums, their practical value is apparent since they are used as parts of clocks, metronomes, and seismometers. Acceleration Due to Gravity Watch the prelab video for Lab 2 (20.53 min). The objective of the lab was to determine the gravitational acceleration constant, g, by measuring the change in velocity of known masses sliding down an inclined plane. For example, the power of gravity allows artificial satellites to orbit around Earth without falling as their mass is calculated regarding acceleration due to gravity. Show one sample calculation onthe next page. Calculate the acceleration due to gravity for each trial. Return the tennis ball to the height in step 1 and repeat four more times.4. One of the most obvious (and the weakest. Repeat the measurement of time t using another steel ball which is lighter and smaller for 5. You need to calculate these for Part 2 of this lab. Therefore, to impart an acceleration to an object, one must impart a force. From the data in the table 1, calculate t avg and using equations (1) and (2) respectively. F m a (1) or force mass times acceleration. Theory: In its simplest form, Newton's law of force relates the amount of force on an object to its mass and acceleration. If materials of different weights, size, or shape had been used in the performed lab exercise, the results would still be the same because the physical force of gravity is constant for all falling objects.Īnother significant aspect of this lab exercise is that it was not merely an academic exercise because the concept of acceleration due to gravity is highly applicable in practice. THEORY The purpose of this experiment is to measure the acceleration of a freely falling object. Drop the tennis ball and time its fall using a s to pwatch. investigate the acceleration due to the force of gravity. As acceleration due to gravity is the physical constant, it does not matter what shape and size are the falling objects (any other thing could be used instead of the paper strip), and thus both methods give the same result, despite that the input data differs. Adjust properties of the objects to see how changing the properties affects the gravitational attraction. It is also highly important to emphasize why the same quantity derived from two different activities. Visualize the gravitational force that two objects exert on each other.
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