This activity demonstrates Lenz's Law, which states that an induced electromotive force …
This activity demonstrates Lenz's Law, which states that an induced electromotive force generates a current that induces a counter magnetic field that opposes the magnetic field generating the current. In the demonstration, an empty aluminum can floats on water in a tray, such as a Petri dish. Students spin a magnet just inside the can without touching the can. The can begins to spin. Understanding what happens can be explained in steps: first, the twirling magnet creates an alternating magnetic field. Students can use a nearby compass to observe that the magnetic field is really changing. Second, the changing magnetic field permeates most things around it, including the aluminum can itself. A changing magnetic field will cause an electric current to flow when there is a closed loop of an electrically conducting material. Even though the aluminum can is not magnetic, it is metal and will conduct electricity. So the twirling magnet causes an electrical current to flow in the aluminum can. This is called an "induced current." Third, all electric currents create magnetic fields. So, in essence, the induced electrical current running through the can creates its very own magnetic field, making the aluminum can magnetic. This is activity four of "Exploring Magnetism." The guide includes science background information, student worksheets, glossary and related resources.
This is a great already pre made with slide transitions and animations …
This is a great already pre made with slide transitions and animations if you are making study games, etc! All you need to do is plug in your own questions and content!
This is an activity about keeping astronauts safe from debris in space. …
This is an activity about keeping astronauts safe from debris in space. Learners will investigate the relationship between mass, speed, velocity, and kinetic energy in order to select the best material to be used on a space suit. They will apply an engineering design test procedure to determine impact strength of various materials. This is engineering activity 2 of 2 found in the ISS L.A.B.S. Educator Resource Guide.
This is an activity about orbital mechanics. Learners will investigate how lateral …
This is an activity about orbital mechanics. Learners will investigate how lateral velocity affects the orbit of a spacecraft such as the ISS. Mathematical extensions are provided. This is science activity 1 of 2 found in the ISS L.A.B.S. Educator Resource Guide.
This is a lesson about crystal growth. Leaners will grow a sugar …
This is a lesson about crystal growth. Leaners will grow a sugar crystal and learn how this relates to growing protein crystals in space. The lack of gravity allows scientists on the space station to grow big, almost perfect crystals, which are used to help design new medicines. This is science activity 2 of 2 found in the ISS L.A.B.S. Educator Resource Guide.
This is a lesson about the technology as it relates to heat …
This is a lesson about the technology as it relates to heat transfer (conduction and convection)on the International Space Station. Learners will investigate how to build a space suit that keeps astronauts cool. This is technology activity 1 of 2 found in the ISS L.A.B.S. Educator Resource Guide.
After watching a 1940 film clip of the "Galloping Gertie" bridge collapse …
After watching a 1940 film clip of the "Galloping Gertie" bridge collapse and a teacher demo with a simple pendulum, student groups discuss and then research the idea of motion that repeats itself specifically the concepts of periodic and harmonic motion. They become aware of where and how these types of motion occur and affect them in everyday applications, both natural (seasons, tides, waves) and engineered (swings, clocks, mechanical systems). They learn the basic properties of this type of motion (period, amplitude, frequency) and how the rearrangement of the simple pendulum equation can be used to solve for gravitational acceleration, pendulum length and gravity. At lesson end, students are ready to conduct the associated activity during which they conduct experiments that utilize swinging Android® devices as pendulums.
Intra-science est un site de vulgarisation scientifique mettant à disposition des explications, …
Intra-science est un site de vulgarisation scientifique mettant à disposition des explications, des observations et des expériences richement illustrées.
Les sujets démontrés: la biologie, la physique, la chimie, les mathématiques
This introductory, algebra-based, two-semester college physics book is grounded with real-world examples, …
This introductory, algebra-based, two-semester college physics book is grounded with real-world examples, illustrations, and explanations to help students grasp key, fundamental physics concepts. This online, fully editable and customizable title includes learning objectives, concept questions, links to labs and simulations, and ample practice opportunities to solve traditional physics application problems. Derived from College Physics by OpenStax.
This textbook emphasizes connections between theory and application, making physics concepts interesting …
This textbook emphasizes connections between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigour inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result.
Students are introduced to the concept of simple tools and how they …
Students are introduced to the concept of simple tools and how they can make difficult or impossible tasks easier. They begin by investigating the properties of inclined planes and how implementing them can reduce the force necessary to lift objects off the ground.
In this activity students use log tapes and base-two slide rules as …
In this activity students use log tapes and base-two slide rules as references to graph exponential functions and log functions in base-10 and base-2. Students discover that exponential and log functions are inverse, reflecting across the y = x axis as mirror images. This is activity E2 in the "Far Out Math" educator's guide. Lessons in the guide include activities in which students measure, compare quantities as orders of magnitude, become familiar with scientific notation, and develop an understanding of exponents and logarithms using examples from NASA's GLAST mission. These are skills needed to understand the very large and very small quantities characteristic of astronomical observations. Note: In 2008, the GLAST mission was renamed Fermi, for the physicist Enrico Fermi.
This lesson provides a way for students to determine the relationship between …
This lesson provides a way for students to determine the relationship between the distance from a light source and its brightness. Once students discover the relationship, they can begin to understand how astronomers use this knowledge to determine the distances to stars and far away galaxies.
This is a lesson to demonstrate magnetic field lines in 2- and …
This is a lesson to demonstrate magnetic field lines in 2- and 3-dimensions. In the first activity, learners sprinkle iron filings over a magnet underneath a paper and record their observations. The second activity involves building a 3-D magnetic field visualizer using a clear plastic bottle, a cow magnet and iron filings. This is the second lesson in the first session of the "Exploring Magnetism" teacher guide.
In this activity, students graph second and third order functions, discovering an …
In this activity, students graph second and third order functions, discovering an inverse relationship between squares and square roots and between cubes and cube roots. Students graph these functions on both linear grid (evenly spaced numbers), and a log-log grid (evenly space exponents). Graph lines that curve on linear grids transform into straight lines on the log-log grids, with slopes equal to their exponential powers. This activity is activity E3 in the "Far Out Math" educator's guide. Lessons in the guide include activities in which students measure, compare quantities as orders of magnitude, become familiar with scientific notation, and develop an understanding of exponents and logarithms using examples from NASA's GLAST mission. These are skills needed to understand the very large and very small quantities characteristic of astronomical observations. Note: In 2008, GLAST was renamed Fermi, for the physicist Enrico Fermi.
When we hear the word radiation, it壽猻 tempting to picture huge explosions …
When we hear the word radiation, it壽猻 tempting to picture huge explosions and frightening mutations. But that壽猻 not the full story 壽� radiation also applies to rainbows and a doctor examining an X-ray. So what is it, really, and how much should we worry about its effects? Matt Anticole describes the different types of radiation.Lect
In this activity, students survey other people to find out their thoughts …
In this activity, students survey other people to find out their thoughts about life beyond Earth and compare their ideas with visitors to the Cosmic Questions exhibit. Students can also analyze their survey data to see whether there is any variation or patterns in answers from men and women or people of different ages. To do this, students will need to design their own method for tracking demographic data. This activity is part of the "Cosmic Questions Educator's Guide" that was developed to support the Cosmic Questions exhibit. Activities in the guide can be used in conjunction with or independently of the exhibit.
This activity uses Dr. Drake's framework to have students consider the implications …
This activity uses Dr. Drake's framework to have students consider the implications of each term and make their own estimates of life in the Milky Way galaxy.åÊThis activity is part of a guide that was developed in conjunction with the Cosmic Questions exhibit and complements a museum visit. However, the activities can also be used independently. The format is flexible, and educators can pick and choose the materials that are most appropriate for their students.
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