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Considering pendulums, their practical value is apparent since they are used as parts of clocks, metronomes, and seismometers. 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. This equation states that the force between the two masses m and m is equal to the product of their masses (mm ) multiplied by a constant (G ) and divided. 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. Therefore, the acceleration due to gravity (g) is given by GM/r 2. ![]() Its value near the surface of the earth is 9.8 ms-2. Repeat the measurement of time t using another steel ball which is lighter and smaller for 5. The above acceleration is due to the gravitational pull of the earth, so we call it acceleration due to gravity it does not depend upon the test mass. You need to calculate these for Part 2 of this lab. 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. From the data in the table 1, calculate t avg and using equations (1) and (2) respectively. ![]() It is also highly important to emphasize why the same quantity derived from two different activities. is a force of attraction between two objects the force due to gravity always works to.
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