Am I at the math level for studying physics? 

I have finished Grade 7 and 8 math. Now I'm doing the second half of Algebra 1 and having trouble understanding stuff in the beginning of the Physics Library.

More specifically, I got lost at "Acceleration", then after powering through its practices with some help from my parents, I got lost again at "Kinematic formulas and projectile motion".

It seems very complicated for me, but I'm not sure if that is because physics is all new to me and I should keep trying, or because I don't know enough math. I feel like it's much harder than what I'm learning in Albegra 1, though the math symbols are familiar and understandable per se.

Anyway, my question is am I already at the math level for studying physics?