In this first semester of Physics, I have learned many things. Out of everything I have learned the thing that stands out the most to me is the equation d = vt. Like in this picture, I'm riding in a car. if we were traveling at 25mph for 5 seconds on this street, you could figure out the distance by converting 25 mph to m/s, then multiplying that by 5s. This was the very first equation I learned in physics, and I will never forget it. The entire Q1 was pretty much dedicated to the study of Kinematics (study of motion). Here are some other things I have learned throughout the semester.
Distance - total length
Scalar - Quantity w/ magnitude
Magnitude - muchness
Vectors - scalar + direction
Displacement - distance from starting point
Speed - distance covered per unit of time
Velocity - speed + direction
Avg v - Total distance / total time
Area under curve of v/t graph = distance
When an obj is thrown up and caught @ same level, Vi = Vf but in opp. direction
weight = mg
What happens on x axis stays (or for y axis too)
Force - push/pull
Inertia - obj.'s capability to continue in state it's in; directly proportional to obj.'s mass
Fnet = ma
Pulleys change direction of force
1 string, 1 tension
P (momentum) = mv
Impulse = change in P
Slope under F vs time graph = Inertia
Work = force x displacement; change in energy
PEg = mgh
KE = 1/2mv^2
Power = work/time
Area under F vs d graph = work
