Introduction

My name is Noeau Makamae Machado. Some of my hobbies/things I like to do are surfing, running, working out, and being with my friends. I think I’m pretty smart, but I can also be pretty lazy. I was in honors biology with Miss Ishimoto freshman year, and finished with a B. I was in Chemistry with Dr. Kuba sophomore year, and I finished with an A. I am in Algebra 2B this semester (I think its stupid that I’m in the messed up cycle of math). I hope to obtain an A in physics this year. I am taking physics because I’m pretty sure colleges want to see physics in a high school transcript. The picture below is of my friend Adjin and I at Sandy's.  This picture describes me because I love the beach and hanging out with my friends.

Acceleration and Motion

Motion is any change in position over time. Acceleration is the rate at which an object changes its velocity. The picture below is of me kayaking at the beach. If I am paddling at a constant speed, then I have an acceleration of zero. This is because I am not getting any faster or slower. If I were to increase my velocity at a constant rate, then I would have a constant acceleration. If I were to decrease my velocity at a constant rate, then I would have a constant deceleration. Another important part of motion is relativity. Relative to the kayak, I am not moving. Relative to the water, the kayak and I are both moving at the same speed. 

Motion

For a couple of weeks now we have been talking about Kinematics in class. Kinematics is the study of the forces that cause motion. The picture below is I bodysurfing at Sandy’s. Since I am riding the wave, relative to the wave I am not moving. Relative to the sand however, the wave and I are both moving. Acceleration is change in velocity over change in time. My acceleration after riding the wave for 2 sec. would be whatever velocity I am traveling at 2 sec. minus 0m/s (I wasn’t moving before I started on the wave), divided by 2 sec. minus 0 sec. Velocity is measured in m/s². 

Kinematics

We are still on the kinematics unit of physics in our class. Kinematics is the branch of mechanics concerned with the motion of objects without reference to the forces that cause that motion. The image below is a picture of me running during a cross-country race. If someone were to ask if I was moving, I would respond with “relative to what?” This is because all motion is relative. Relative to the ground, I am moving. Relative to the people standing on the side, I am moving away from them, and they are moving away from me, even though they are standing still. Relative to the runners moving the same speed as me, meaning their change in distance divided by change in time are the same, I am not moving.

Motion

In this class unit, we learned about kinematics, which is a branch of mechanics that describes the motion of objects. We learned in class that all motion is relative. This means that it is important when observing if something is moving, to question what it is moving relative to. I took the picture below while on the bus back to school after a cross-country meet on Saturday. Motion is a mind-blowing topic, because although the bus is driving on the freeway at about 45 miles per hour, relative to each other, none of the people on the bus are moving. Relative to the freeway, the bus is moving, but relative to other cars also moving at 45 mph, the bus is not moving. This picture relates to our topic, because it is about motion.