Physics Post 6

For this physics post I will be explaining this picture I took of a vector on my bed. Since there are no defined axes, a person would not know which direction or the scale of this vector. Without the axes or any other type of line to show direction, a person could not define what direction this arrow is going therefore, by definition, making this not a vector since there is no direction. As an example, a scale that you could use in this picture would be the squares on my bed. If a person took the two tan lines closest to the tail of the arrow and used those as the x and y axis, and estimated that each square was about 3 centimeters, they would find that the arrow is about 22.5 centimeters. Assuming that 1 centimeter is equal to 1 meter per second, this arrow has a magnitude of 22.5 meters per second. Also considering that the edge of my bed that is showing is facing north, then a person could guess this arrow is facing southeast, giving the vector a direction.

Physics Post 5

For this physics post I will be explaining the picture I took of a car and a deer. This picture relates to physics because when a car is about to run into a deer (this happens in the continental United States since Hawaii doesn't have roaming deer) the drivers instinct is to brake and swerve. Braking the car leads to deceleration (also known as accelerating in the opposite direction). (Not considering drivers reaction time) If this car were about to hit the deer who is 90 meters away at 30 meters per second, the driver would need to accelerate in the opposite direction 30 meters per second squared within the 90 meters. This is actually quite easy because the average person can brake at 15 feet per second squared which is equal to 5 meters per second squared (a professional race car driver can brake at about 32 feet per second so he would have less than no problem).

Physics Post 4

For this physics post I will be explaining the picture I took of an ant. This picture relates to physics because you can make a distance over time graph of an ant's movements. An example would be this ant who was crawling from the edge of my bed to my laptop which is about 4 feet. It took the ant about 2 minutes to make this journey. If you plotted this on a graph, you could see that the ant's average speed was about 2 feet/minute (0.023 miles/hour). But, he was not constantly walking this speed. He took several breaks on his trip. During this time his speed was zero. That means his speed in the time that he wasn't taking breaks must have been more than 2 feet/minute.

Physics Post 3

For this physics post I will be explaining the picture of me throwing up a box of tissues. This relates to physics because the object you throw in the air is affected by the downward acceleration of Earth's gravity. Most things that are thrown in the air will follow the fast-slow-stop-slow-fast pattern. The first part, fast, is from the energy that the person used to throw the object in the air. Then, it will slow down due to gravity and eventually, at the peak of its path, it will reach a speed of zero. Then, it will slowly pick up speed due to gravity's downward acceleration. Finally, it will resume the speed that corresponds to how many seconds it was in the air.

Physics Post 2

For my second physics post I will be explaining the picture of my paintball gun. This relates to what we are learning in science because speed of your paintball is measured every time you play. In order to keep people safe, the referees at various paintball fields on the island require that you shoot your paintball gun through a chronometer to measure how fast your paintball is going. Although paintball is measured in feet per second, you could convert that to meters per second through dimensional analysis. Paintball can also relate to vectors and displacement if you were to follow the path of your paintball as you shot it in a certain direction.

Physics Post 1

For a physics related picture I turned my lanyard into a pendulum. This is related to physics because we recently did a lab that was related to pendulums and their periods. According to the lab data we found out how things such as string length, angle of drop, and mass of dropped object affected the length of the pendulum's period. Also, our hypothesis about the string length, angle of drop, and mass of drop object were either proven or not depending on what kind of data our group collected. Although this lanyard is not the same as the pendulum we used in class, it is still a good source for measuring different laws of physics because physics is physics and it can't be changed without major proof.

Introduction Post

My name is Philip. I am currently a junior. I am also currently taking Mr. Blake's physics class. So far in high school I have taken Biology and Chemistry. I got B grades in Biology and A grades in Chemistry. In summer school in elementary I took marine biology and got an A. My current math class is Honors Pre-Calculus. What I hope to accomplish in Physics is to get a better understanding of different laws of Physics and how it affects our lives. That picture is of me and my friends at paintball. This represents me because hanging out with friends and doing stuff like paintball is what I like to do.