Here's what that means:
* Acceleration: This means that an object falling freely towards Earth will increase its speed by 9.81 meters per second every second.
* Gravity: This is the force of attraction between Earth and any object with mass.
It's important to note that:
* This value is an average. The actual acceleration due to gravity varies slightly depending on factors like altitude, latitude, and the density of the Earth beneath you.
* It's a simplification. This value ignores air resistance, which can significantly affect the acceleration of falling objects, especially at higher speeds.
Let me know if you have any other questions about gravity!