Why is grass fastest tennis surface?

Related questions

1. Why is grass the fastest surface in tennis?
2. Who has won all 4 Grand Slams?
3. What is Roger Federer's net worth?
4. How many Masters 1000 does Federer have?
5. Who has won the 4 Grand Slams in one year?
6. How do tennis balls bounce on grass?
7. Which Masters 1000 has Federer not won?
8. What is the best tennis surface?
9. How many tennis opens are there?
10. Does Rafael Nadal have a sister?

Tags

1. #types
2. #surface
3. #grass
4. #slippery
5. #fastest
6. #surfaces
7. #materials
8. #other
9. #softer
10. #tennis
11. #lower
12. #court
13. #courts
14. #bounce