Speed - Time Graphs

Let's take a look at speed and time graphs and see what they tell you. A speed- time graph is a visual picture of both constant acceleration, constant deceleration, and no acceleration.
In order to calculate the acceleration on the graph you will find the gradient of the line. The gradient of the line is the same as the acceleration which is change in speed over change in time.

[farrukhsayyam]

Umm i have a qs Are velocity time Graphs the same as Speed time Graphs in terms of gradient

[christianshubham]

I have a question why we sometimes see full moon, sometimes half and sometimes nothing? Like in 15 days we see full