Here's a breakdown of what this means:

* Acceleration: It's a measure of how quickly an object's velocity changes.

* Due to Gravity: This means the acceleration is caused by the force of gravity.

* 9.81 m/s²: This means that for every second an object falls, its speed increases by 9.81 meters per second.

Important Notes:

* This value is an approximation: The actual value of 'g' varies slightly depending on factors like altitude and latitude.

* Standard Gravity: The standard value of acceleration due to gravity used in physics is often rounded to 9.8 m/s².

* Other Units: 'g' can also be expressed in other units, such as feet per second squared (ft/s²).

Let me know if you have any other questions!