I'd rather be in outer space 🛸
$LAYYYTER
★
tannertan36
祝日 / Permanent Vacation
art blog(derogatory)
almost home
No title available
will byers stan first human second
Andulka
Discoholic 🪩
noise dept.
Alisa U Zemlji Chuda
Origami Around
Product Placement
hello vonnie
pixel skylines
Kaledo Art
Aqua Utopia｜海の底で記憶を紡ぐ
Claire Keane
seen from Switzerland
seen from Brazil
seen from India
seen from Sweden
seen from Finland
seen from Australia
seen from Chile
seen from United States
seen from United States
seen from Switzerland
seen from United States
seen from United States
seen from Malaysia
seen from United States
seen from United Kingdom
seen from United States
seen from United States
seen from Morocco
seen from Honduras
seen from United States
@nickragone-blog
Temperature, Thermal Energy, and Heat (flow) are three separate terms.
Temperature is the average KE of a molecule which the formula 1/2mv^2 represents.
Thermal Energy is the total (heat) energy of all of the molecules of an object and is represented by N x (KE)/#molecules.
Heat (Flow) is the movement towards thermal equilibrium and is based on temperature.
Heat Transfer
Today we learned that heat can be transferred. There are 3 types of heat transfer. Conduction is direct contact of molecules. Convection occurs when particles are not in direct contact; they flow as a result of temperature differences. Radiation allows the transfer of heat through empty space and does not depend on matter present.
Thermal Energy
Yesterday we began learning about thermal energy. Thermal energy is the total energy of the molecules present in a gas. Temperature and thermal energy are related, but are not the same; an object's thermal energy is proportional to its molecules while temperature is not dependent upon molecules.
Machines
A machine is a device that helps to do work by changing the magnitude or direction of an applied force. There are three common machines which are levers, pulleys, and inclines.
We learned about actual mechanical advantage (AMA) and ideological mechanical advantage (IMA). The actual mechanical advantage is the ratio of output force to input force of a machine. It is represented by by output force / input force. IMA is the ratio of output distance to input distance of a machine. It is represented by the formula D in / D out. AMA/IMA is equal to the efficiency. By definition efficiency of a machine is the ratio of useful energy output to the total energy output.
That's a cute picture there Ty.
Geez, look at this tank! This is our setup for the Pulley System efficiency lab. We used many materials for this lab including, a weight, a newton scale, and double and single pulley.
This is a picture of Nick playing the guitar with the meter stick. Today in the lab we measured the effort and the effort distance. The resistance or the weight of the object remained constant as did the resistance distance (at 10 cm). We used the numbers to calculate the AMA, IMA and efficiency. This was done so with a double pulley, and single pulley, some string, a weight, and a force scale.
Wow! Who is that santa stud in the picture?! Anyway as you can see, Joe here is applying force to the pulley system. In doing this we were able to calculate the effort distance, effort, and etc...When we used all of the calculations above (in Tyler's post) we got a final efficiency greater than 100% in 2 of the 3 trials. In an ideal system, this could not be possible, so we had to recognize the defects in our lab, which were probably due to Tyler or Joe's setup.
Ideal and Non-Ideal Mechanical System
An ideal mechanical system is a system in which no opposing forces, such as friction, act upon. The sum of PEg and KE is constant. There is also a non-ideal mechanical system in which there is an force that acts upon the system. This frictional force converts the kinetic energy of the system to internal energy. The formula for this non-ideal system is: E(total)= KE+ PE + Q.
the diagram above shows how energy is conserved. the blue ball has potential energy but no kinetic energy. the purple ball has a maximum amount of kinetic energy and no potential energy. the pink ball, like the blue ball has potential energy at its maximum and no kinetic energy. as the blue...
This displays an ideal mechanical system with no friction or non-conservative force opposing it. The sum of both the KE and PE are constant throughout.
Mechanical Energy
The mechanical energy of a system is equal to Kinetic Energy + Potential Energy. When this mechanical energy is conserved, the energy that is present before the event is equal to the energy present after. PEg = mgh KE = 1/2mv^2
Potential Energy
Potential Energy is the energy of position; it is stored energy and it refers to the position of an object. Gravitational Potential Energy is the work required to elevate an object against gravity.
Another comparative idea I had was how many horses equaled a car. If we look at some like the mustang at about 350 horsepower, it would put out a tremendous amount of watts. Comparing horses to cars and bulbs gives a good comparison of the tremendous power output these cars have. A way of expressing them would be horsepower x 700 for the wattage
I thought to get the wattage, you have to times the horsepower by 550 (according to the lab)
Energy
Today in class we worked more on Power (Fd/t) and Work (Fd), but we also learned about energy specifically mechanical, and kinetic energy. Mechanical energy is the property of an object that enables it to do work. The KE of an object is the work needed to bring it to a certain speed from rest. All energy is measured in joules.
Physics Lab-Measuring the power production of several students
During a collision, after the two objects collide, their is a transfer of momentum. The equation for momentum is p=mv. The object with the greater momentum before the collision, in other words the heavier object that is moving faster, will transfer more momentum to the smaller and slower...
This also displays an overall conservation of momentum in the system. The initial momentum is equal to the final momentum.
Momentum in football
http://rivals.yahoo.com/ncaa/football/blog/dr_saturday/post/Video-Aaron-Dobson-s-backhanded-one-handed-cat?urn=ncaaf-wp10597
As I was driving home from SAT class I passed a car crash. When I saw the damage in which each car had, it made me think about the type of the collision that had ensued. I considered the factors. The fact that the cars had bounced off each other, and the fact that they had continued with an amount...
Even though both cars bounced off of each other during the collision, wouldn't the collision be inelastic because the objects were deformed in someway, therefore resulting in a loss of kinetic energy.
