The students discover the basics of heat transfer in this activity by …
The students discover the basics of heat transfer in this activity by constructing a constant pressure calorimeter to determine the heat of solution of potassium chloride in water. They first predict the amount of heat consumed by the reaction using analytical techniques. Then they calculate the specific heat of water using tabulated data, and use this information to predict the temperature change. Next, the students will design and build a calorimeter and then determine its specific heat. After determining the predicted heat lost to the device, students will test the heat of solution. The heat given off by the reaction can be calculated from the change in temperature of the water using an equation of heat transfer. They will compare this with the value they predicted with their calculations, and then finish by discussing the error and its sources, and identifying how to improve their design to minimize these errors.
Folder with syllabus and course outline for General Physics (Algebra) I course …
Folder with syllabus and course outline for General Physics (Algebra) I course that uses Openstax College Physics as textbook (https://openstax.org/details/books/college-physics).
This course covers classical mechanics, which essentially means the physics of forces and motion that was developed before the start of the 20 th century. This physics accurately describes the behaviors of objects that are: large enough to be seen with microscopes but smaller than planets or moons, roughly room temperature (give or take a few hundred degrees), and traveling much slower than the speed of light—in other words, most of our everyday experience.
The classical mechanics covered in this course can be boiled down to seven key concepts: Newton’s three laws of motion, the law of universal gravitation, and the laws of conservation of momentum, energy, and angular momentum. We’ll be focusing on these central ideas and how they apply to practical examples.
Course Content and Outcomes After completion of this course, students will 1) Apply knowledge of motion, forces, energy, and circular motion to explain natural physical processes and related technological advances. 2) Use an understanding of calculus along with physical principles to effectively solve problems encountered in everyday life, further study in science, and in the professional world. 3) Design experiments and acquire data in order to explore physical principles, effectively communicate results, and critically evaluate related scientific studies. 4) Assess the contributions of physics to our evolving understanding of global change and sustainability while placing the development of physics in its historical and cultural context.
This interactive activity from ChemThink takes a closer look at a covalent …
This interactive activity from ChemThink takes a closer look at a covalent bond--how it is formed and how the sharing of two electrons can keep atoms together.
Students learn about the physical force of linear momentum movement in a …
Students learn about the physical force of linear momentum movement in a straight line by investigating collisions. They learn an equation that engineers use to describe momentum. Students also investigate the psychological phenomenon of momentum; they see how the "big mo" of the bandwagon effect contributes to the development of fads and manias, and how modern technology and mass media accelerate and intensify the effect.
Let's explore some science and math around why seatbelts work. Check out …
Let's explore some science and math around why seatbelts work. Check out the career video from Billie Jo Deal, Transportation Safety Coordinator from the Oregon Department of Transportation, about how she works to keep people safe on the roads. Then, in the Discovery Challenge, we build crash models and calculate restraining forces.
This lesson introduces NGSS standards, and those standards are listed in the lesson.
Videos are part of the Explore Science Club series, an asynchronous online learning program using YouTube videos that connects elementary and middle school students to STEM professionals through hands-on lessons where students explore science and engineering practices related to the highlighted careers. There is an option to use FlipGrid, an online video recording platform for students to share their discoveries
Students learn about the role engineers and mathematicians play in developing the …
Students learn about the role engineers and mathematicians play in developing the perfect bungee cord length by simulating and experimenting with bungee jumping using washers and rubber bands. Working as if they are engineers for a (hypothetical) amusement park, students are challenged to develop a show-stopping bungee jumping ride that is safe. To do this, they must find the maximum length of the bungee cord that permits jumpers (such as brave Washy!) to get as close to the ground as possible without going "splat"! This requires them to learn about force and displacement and run an experiment. Student teams collect and plot displacement data and calculate the slope, linear equation of the line of best fit and spring constant using Hooke's law. Students make hypotheses, interpret scatter plots looking for correlations, and consider possible sources of error. An activity worksheet, pre/post quizzes and a PowerPoint® presentation are included.
Students are introduced to servos and the flex sensor as they create …
Students are introduced to servos and the flex sensor as they create simple, one-jointed, finger robots controlled by Arduino. Servos are motors with feedback and are extensively used in industrial and consumer applications—from large industrial car-manufacturing robots that use servos to hold heavy metal and precisely weld components together, to prosthetic hands that rely on servos to provide fine motor control. Students use Arduino microcontrollers and flex sensors to read finger flexes, which they process to send angle information to the servos. Students create working circuits; use the constrain, map and smoothing commands; learn what is meant by library and abstraction in a coding context; and may even combine team finger designs to create a complete prosthetic hand of bendable fingers.
Students’ background understanding of electricity and circuit-building is reinforced as they create …
Students’ background understanding of electricity and circuit-building is reinforced as they create wearable, light-up e-textile pins. They also tap their creative and artistic abilities as they plan and produce attractive end product “wearables.” Using fabric, LED lights, conductive thread (made of stainless steel) and small battery packs, students design and fabricate their own unique light-up pins. This involves putting together the circuitry so the sewn-in LEDs light up. Connecting electronics with stitching instead of soldering gives students a unique and tangible understanding of how electrical circuits operate.
Students will be guided through the procedure for creating a partial-pressure diagram …
Students will be guided through the procedure for creating a partial-pressure diagram in the low-temperature system Cu-CO2-O2-H2O system for the minerals cuprite, tenorite, native copper, azurite, and malachite. They will write chemical reactions and use Gibbs Free Energies to calculate Log K and plot lines on a graph with axes Log P CO2 and Log PO2 for stability boundaries between minerals. They are provided with data to then create their own diagram for the Fe-CO2-O2 system.
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Student teams investigate the properties of electromagnets. They create their own small …
Student teams investigate the properties of electromagnets. They create their own small electromagnet and experiment with ways to change its strength to pick up more paper clips. Students learn about ways that engineers use electromagnets in everyday applications.
This course covers the following topics: X-ray diffraction: symmetry, space groups, geometry …
This course covers the following topics: X-ray diffraction: symmetry, space groups, geometry of diffraction, structure factors, phase problem, direct methods, Patterson methods, electron density maps, structure refinement, how to grow good crystals, powder methods, limits of X-ray diffraction methods, and structure data bases.
This course in crystal structure refinement examines the practical aspects of crystal …
This course in crystal structure refinement examines the practical aspects of crystal structure determination from data collection strategies to data reduction and basic and advanced refinement problems of organic and inorganic molecules.
This short exercise introduces students to phase diagrams that have a eutectic …
This short exercise introduces students to phase diagrams that have a eutectic and a peritectic. After learning about such phase diagrams, students answer questions about melt composition, temperature, cooling and melting, crystalization, and melt:crystal ratios.
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In this laboratory exercise students explore the crystallization behavior of a rock …
In this laboratory exercise students explore the crystallization behavior of a rock of known composition at 1 atmosphere pressure using experimental and numerical methods and phase diagrams. They also create and use diagrams to classify their igneous rock and identify its tectonic setting. They compare results of the three methods, and then give a presentation of their results to the class.
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