Recently, I've been trying to get into better shape so I've been going to the gym. As part of my cardio routine, I grudgingly run on the treadmill. After about 15 minutes I find that my knees are in unbelievable pain (gosh, I despise the treadmill)! I have realized the reason for my knee pain! It has to do with Newton's Third Law! As I'm running on the treadmill, my feet are putting a force on the treadmill, and the treadmill puts a force back on my body. Though I have a greater acceleration
Friday April 10th might as well have been Friday the 13th!!! Due to the very strong wind, the traffic lights on Cooper and Titus were knocked out. Unfortunately, several businesses around that area also felt the wrath of Mother Nature, suffering from power outages themselves. I work at Cam's Pizzeria as I have mentioned in my previous blog posts, and my place of work suffered from the power outage but heres the catch... only in half of our store. What does this have to do with physics you say
I work at Cam's Pizzeria on Titus. It's a really fun place to work and I love the people I work with! At work, I've noticed a lot of physics. For example, the pizza chef constantly complains that their wrist hurts throughout the night. After an eye roll, I finally realize why their wrist might be sore. It has to do with Newton's third law. The pizza chef is pressing on the dough with a force, and the dough presses back on the wrist with an equal and opposite force. After about 10 pizza's, t
In Orchestra, we are currently rehearsing a piece entitled "Danza" composed by some hotshot 21st century guy who has no respect for the left hand of a cellist. After the first 53 measures, my entire section plays a series of D's. By a series a mean 500+ until the end of the piece. Its both irritating and painful after a while. As my pinky crinkles up into nothing at the end of the period, I think of physics. I'm exerting x amount of force onto the neck of my cello, onto the spring to play th
About two weeks ago I went ice skating with some friends of mine. It was so much fun and I didn't even fall! But both myself and my friends' amateur moves were put to shame when a few couples started showing us how its really done! They twirled, they spun, they jumped and twirled some more. There's a lot of physics in fancy ice skating- er, figure skating. First of all, we see Newton's first law: an object at motion stays in motion until acted upon by a force. The ice skaters glide across the
Last Thursday my class launched our catapults on a football field. My partner and I, were a little bit frustrated with the project, having little experience with power tools and building mechanically sound structures. The day of the launch we were both nervous and excited; our catapult was among one of the smallest on the field. We attempted to get our softball to launch at a 45 degree angle, seeing as that is the best angle for the greatest distance to launch. Unfortunately, our catapult went a
A couple of weeks ago, when we received a TON of snow and it was -15 degrees (but still received no snow/cold day), I sadly had to drive to school. Before driving to school I had to pick up my friend Natalie. It usually takes me about 20 minutes to get from my house to school, but this day it ended up taking me 35!! On the way, everyone drove like old ladies (naturally) and even going 20 mph I found myself sliding and being sucked into the slush and ice; it was terrifying!!! I read somewhere th
Today while stocking the coke cooler at work, I also had to simultaneously arrange the left over bottles into neat rows from their soft, plastic containers. After I had them all arranged nicely, and stacked on top of each other, a few of the containers that I didn't have room for fell over. BOOM! It was so embarrassing, customers looked to the back and my boss gave me a look that could kill. Shaken up soda flew everywhere. I realize I only have physics to blame for this! I bet I could figure
So basically we put out Christmas tree up 4 days before Christmas. That being said, we were not about to take it down 5 days later! Or even after the New Year apparently... ANYWAY, our Christmas tree was finally taken down last weekend. But upon taking it down I realized that the unit we were doing in physics really related to our tree, or the lights at least! Christmas lights use both power and energy, which are measured in watts. When the lights are off but plugged in they have a certain amo
The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.
APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to firstname.lastname@example.org. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.