We’ve introduced the 0th and 1st laws of thermodynamics, so now it’s time to move on to the second law and how we came to understand it. We’ll explain the differences between the first and second law, and we’ll talk about the Carnot cycle and why we can never design a perfectly efficient engine.
In this activity, students use mathematics to understand tides and gravitation and how gravity works across astronomical distances, using an apparatus made from a slinky, meter stick, and a hook. A description of the mathematical relationships seen in the demonstration is included. The resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications.
In this activity, students experience a demonstration of light scattering that explains the blue colors in the Intersetllar Medium (ISM) nebulae, and the reddening of stars viewed through the ISM. It also explains the blue appearance of the sky on Earth and the reddish appearance of the Sun during sunsets. The demonstration is best done before or during a lesson on the ISM when light scattering is discussed. This activity is one of two supporting the scientific investigation of the ISM, and is linked to reading material, reading review questions and problems, a teacher answer sheet, and glossary.
Students build their own simple conductivity tester and explore whether given solid materials and solutions of liquids are good conductors of electricity.
In this activity, students develop an understanding of how engineers use wind to generate electricity. They will build a model anemometer to better understand and measure wind speed.
Through this activity, Bernoulli's principle as it relates to winged flight is demonstrated. Student pairs use computers and an online virtual wind tunnel to see the influence of camber and airfoil angle of attack on lift. Activity and math worksheets are provided.
Students gain a basic understanding of electrical circuits. They build wire circuits and pass paperclips through the mazes, trying not to touch the wires. Touching a wire with a paperclip causes the circuit to close, which activates an indicator.
Investigating a waterwheel illustrates to students the physical properties of energy. They learn that the concept of work, force acting over a distance, differs from power, which is defined as force acting over a distance over some period of time. Students create a model waterwheel and use it to calculate the amount of power produced and work done.
In addition to the associated lesson, this activity functions as a summative assessment for the Using Stress and Strain to Detect Cancer unit. In this activity, students will create a 1-D strain plot in Microsoft Excel depicting the location of a breast tumor amidst healthy tissue. The results of this activity will function as proof of the accuracy and reliability of the students' breast cancer detection design.
The purpose of this activity is to demonstrate Newton's 3rd Law of Motion, which is the physical law that governs thrust in aircraft. The students will do several activities that show that for every action there is an equal and opposite reaction.
To explore different ways of using solar energy, students build a model solar water heater and determine how much it can heat water in a given amount of time. Solar water heaters work by solar radiation and convection.
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La ressource consiste en une fiche pédagogique portant sur une expérience d'électrocinétique. Celle-ci contient des indications pratiques pour l'enseignant ainsi qu'une explication pédagogique de l'expérience. La ressource contient également une vidéo de l'expérience.
La ressource consiste en une fiche pédagogique portant sur une expérience d'électrostatique. Celle-ci propose des informations pratiques pour l'enseignant ainsi qu'une explication pédagogique de l'expérience. La ressource contient également une vidéo de l'expérience.
La ressource consiste en une fiche pédagogique portant sur une expérience d'électrostatique. Celle-ci propose des informations pratiques pour l'enseignant ainsi qu'une explication pédagogique de l'expérience. La ressource contient également une vidéo de l'expérience.
La ressource consiste en une fiche pédagogique portant sur une expérience d'électrostatique. Celle-ci propose des informations pratiques pour l'enseignant ainsi qu'une explication pédagogique de l'expérience. La ressource contient également une vidéo de l'expérience.
Une série de simulations provenant de l’Université de Colorado à Boulder pour les 9e – 12e au sujet des sciences. Cette simulation démontre le processus d'équilibrer les masses.
Jouez avec des objets sur une bascule pour apprendre l'équilibre. Testez ce que vous avez appris en essayant le jeu du Défi d'Équilibre.