The speed would be in a decimal? Or do you want it in a fraction?
Like windmills they use the winds to generate their power.
The answer is: Expressive vocabulary
Expressive vocabulary refers to the combination of all the words that a person has acquire throughout his/her life and can be used in various type of situations.
This would include all words in the child vocabulary, starting from the child's written language, spoken language or even the child's manually signed words.
A.The swimmer pushes the water
C. the walls force against the ball