What is the approximate value of gravitational acceleration on Earth?

The approximate value of gravitational acceleration on Earth is typically quoted as 9.81 m/s². This value represents the acceleration experienced by an object due to Earth's gravity when falling freely near the surface, assuming negligible air resistance.

This standard measurement is crucial in understanding various concepts in mechanics, including free fall, projectile motion, and the forces acting on objects. The 9.81 m/s² value is derived from extensive experimental measurements and is accepted in most physical contexts, making it an essential constant in physics.

While the options may suggest other values like 8.00 m/s² and 10.00 m/s², these do not accurately reflect the standard gravitational acceleration. The option stating 9.81 km/s² is incorrect not just in terms of magnitude but also in the units used since it incorrectly expresses gravitational acceleration in kilometers per second instead of meters per second squared. Thus, the correct choice effectively captures the most widely recognized and utilized value of gravitational acceleration on Earth's surface.