This choice was made during my baseline testing where I discovered that the variation in the spring constant between different springs of the same type at room temperature was upwards of 5N/m. Preliminary testing One spring was used throughout all trials instead of different springs for each temperature increment. The same thermometer, force sensor, apparatus, and spring were used throughout all trials as to ensure that any systematic error was constant across trials. A nail attached to the apparatus was used to hook into the spring, as to minimize human error via inconsistent stabilization of the 10cm displacement. Each time the water in the heat bath reached a different temperature, the spring was left to soak for 3 minutes longer to ensure thermal equilibrium occurred, so that the thermometer read the actual temperature of the spring.
![pasco capstone y intercept pasco capstone y intercept](https://i.ytimg.com/vi/Xc6Q_IuyuRY/maxresdefault.jpg)
Why it is important to control Since the force of the spring is proportional to displacement, having a different displacement between trials would produce poor data The trials were conducted in the same room at school, as to ensure the ambient room temperature remained as consistent as possible, so as not to cause inconsistent heat loss in the time it takes to complete a trial.
#PASCO CAPSTONE Y INTERCEPT SOFTWARE#
The force of the spring was measured using a Pasco force sensor connected to a computer with Pasco software installed.Ĭontrolled Variable Extension from equilibrium position, 10 cm One temperature increment T< 0 was achieved with the use of a freezer. The spring’s temperature was increased by the use of an electronic heat bath and measured by an analog thermometer. The dependent variable is the measured tension of the spring, F s, when extended to a constant length of 10cm. Design The independent variable is the temperature T, of the spring. This investigation will discover the variation in this ratio with temperature, measured in degrees Celsius (☌). The spring constant is a ratio of force per displacement.
![pasco capstone y intercept pasco capstone y intercept](https://cdn2.webdamdb.com/md_oMDJ6z1rwVR1.png)
Equilibrium position refers to the position in which zero Newtons of applied force are acting upon the spring. X= The displacement of the spring from its equilibrium position (m) K= The spring constant (N/m) The negative sign in Hooke’s law represents that the force vector is in the opposite direction to the displacement vector. A few implications of the rigidity and potential load of metals include construction, aircraft, and space travel.īackground The tension force of a spring is negatively proportional to the displacement of the spring as stated by Hooke’s Law: F s=−kx
![pasco capstone y intercept pasco capstone y intercept](https://img.informer.com/pf/pasco-capstone-v1-main-window-screenshot.png)
My goal with this paper is to investigate these properties through the way the tension within a spring varies with temperature, and more importantly, the reasons for change. How can a solid have such variable properties just from an increase in kinetic energy? While such extreme changes in temperature are hard to produce in an average high school lab, the way temperature affects rigidity can still be investigated with a more moderate temperature range.
![pasco capstone y intercept pasco capstone y intercept](https://www.pasco.com/media/files/static/product/capstone-circuits-emulation-screen.jpg)
When I was younger, it was a hobby of mine to watch videos on YouTube of steak being dipped in liquid nitrogen and shattered like glass, or a superheated piece of metal being bent like clay. I have always been interested in the way temperature affects the structure of physical objects in daily life. How does temperature affect the tension in a spring?