False. The acceleration due to gravity (g) is affected by atmospheric changes to some extent.
Here's a step-by-step explanation:
1. Acceleration due to Gravity: The acceleration due to gravity (g) is a constant value that represents the gravitational force acting on an object near the surface of a celestial body like Earth. On the surface of Earth, the standard value for g is approximately 9.81 meters per second squared (m/s²). This means that an object in free fall will accelerate at this rate due to Earth's gravity in a vacuum or in a location with a uniform atmosphere.
2. Atmospheric Changes: The value of g can vary slightly with changes in atmospheric conditions. Here are a few factors that can influence it:
a. Altitude: As you move to higher altitudes above sea level, the strength of gravity decreases slightly. This is because the mass of the Earth's atmosphere contributes to the gravitational force, and as you go higher, there is less atmosphere above you.
b. Latitude: The value of g can also vary slightly with latitude. It is slightly stronger at the poles and slightly weaker at the equator due to the Earth's shape and rotation.
c. Local Geology: The density and distribution of underground materials, such as rocks and minerals, can also cause small variations in the local value of g.
3. Practical Impact: For most everyday purposes and calculations, these variations in g due to atmospheric changes are negligible. Engineers, scientists, and professionals working with precise measurements may need to take these factors into account, but they generally do not significantly affect everyday activities or calculations.
Therefore while the value of the acceleration due to gravity (g) is largely constant for practical purposes on Earth's surface, it can vary slightly with changes in atmospheric conditions, altitude, latitude, and local geology. However, these variations are typically small and not a significant concern for most applications.