"g"is the acceleration due to gravity.on earth it's value is (9.8m/s^2).it change from place to place. but"G" is constant in all universe.ot's value is (6.67 X 10^-11).

Difference between g and G






Introduction:
In the English alphabet, both "g" and "G" are letters. While they may appear similar, there are distinct differences between the lowercase "g" and the uppercase "G." These variances can be observed in their appearance, pronunciation, and usage.




Appearance:
- The lowercase letter "g" is written as a looped letter that starts with a curved line, goes down and curls back up.
- On the other hand, the uppercase letter "G" is written as a straight line that curves back to the left and then continues down with a horizontal line.




Pronunciation:
- The lowercase "g" is pronounced as "jee," which is a soft sound made by the vocal cords vibrating.
- In contrast, the uppercase "G" is pronounced as "gee," which is a hard sound made by the vocal cords abruptly stopping the airflow.




Usage:
- The lowercase "g" is predominantly used as a letter in the middle or at the end of words, such as "dog," "bag," or "big."
- The uppercase "G" is often seen as the first letter of proper nouns, names, or the beginning of sentences, for instance, "George," "Google," or "Golf."




Summary:
To summarize, the lowercase "g" and the uppercase "G" differ in their appearance, pronunciation, and usage. The lowercase "g" is a looped letter, pronounced softly as "jee," and is typically used within words. Conversely, the uppercase "G" is a straight-lined letter, pronounced harshly as "gee," and is often used as the first letter of proper nouns or at the beginning of sentences.