Projectiles #2

Before I went to sleep last night my dad asked me for a pillow so I went to his room and threw the pillow at him. When I did that the pillow went in a parabola motion just like all projectiles do. I woke up this morning and remembered that I had to do a blog so I just recalled what I did last night which was throw the pillow so I took a picture of the pillow that I threw. Projectiles can be found a lot of places around you so you just have to find them. Projectiles are only affected by the force of gravity, not by air resistance or drag.

Projectile Motion

I was playing tennis with my dad and remembered I had to do a blog on projectile motion. Projectile motion is again when an object is thrown or shot or bounced or put in the air and it moves along a curved path like a parabola. That path of motion is called the trajectory. Depending on how far and how fast something is moving in the air will determine how curved the line is. When you serve a tennis ball it goes in a parabola motion. It goes fairly straight motion because it is moving quickly but it is still moving like a parabola. All projectiles we are using are only being calculated with the affect of gravity.

Projectiles

I was playing tennis with my dad and remembered I had to do a blog on projectile motion. So I took the tennis ball and took a picture of it because I couldn’t take a picture of it in the air moving while I was playing. Projectile motion is again when an object is thrown or shot or bounced or put in the air and it moves along a curved path like a parabola. That path of motion is called the trajectory. Depending on how far and how fast something is moving in the air will determine how curved the line is. The line that a tennis ball follows when it is served is most of the time more of a flatter curve because it is hit hard and as straight of a line as possible. When you look at the velocity vs. time graph of the tennis ball moving it should be moving relatively constantly.

Quarter 1 reflection

This quarter in physics was quit an eye opener. I was confused in the beginning of the quarter with all of the new equations and rules that we had to memorize and follow all the time. It really helped that we had acronyms for the equations that we used. Over this quarter I learned a lot about the difference between accuracy and precision. We also learned 4 major equations. Our equations used distance, average velocity, time, acceleration, total velocity, and total time. We used the acronyms (dat) for equations using distance, acceleration and time, (vat) for equations using velocity, acceleration and time, (vad) for equations using velocity, acceleration and distance, and we also used the acronym (dvt) for equations using distance, velocity and time. All of the acronyms help us identify equations quicker. One thing that we learned that I found that helped me with all of the questions that we did was stating the givens and also drawing a picture.  Both of those techniques help me further understand the question. Some of the questions that seemed very easy were even easier when I made a drawing and stated the givens. We have a board called “The Equation Board not bored” which contained all of the different equations that we have to memorize.