This lesson discusses solenoids. Students learn how to calculate the magnetic field …
This lesson discusses solenoids. Students learn how to calculate the magnetic field along the axis of a solenoid and complete an activity exploring the magnetic field of a metal slinky. Solenoids form the basis for the magnet of an MRI. Exploring the properties of this solenoid helps students understand the MRI machine.
Students learn the connections between the science of sound waves and engineering …
Students learn the connections between the science of sound waves and engineering design for sound environments. Through three lessons, students come to better understand sound waves, including how they change with distance, travel through different mediums, and are enhanced or mitigated in designed sound environments. They are introduced to audio engineers who use their expert scientific knowledge to manipulate sound for music and film production. They see how the invention of the telephone pioneered communications engineering, leading to today's long-range communication industry and its worldwide impact. Students analyze materials for sound properties suitable for acoustic design, learning about the varied environments created by acoustical engineers. Hands-on activities include modeling the placement of microphones to create a specific musical image, modeling and analyzing a string telephone, and applyling what they've learned about sound waves and materials to model a controlled sound room.
This simulation lets you see sound waves. Adjust the frequency or volume …
This simulation lets you see sound waves. Adjust the frequency or volume and you can see and hear how the wave changes. Move the listener around and hear what she hears.
In this lesson, students are introduced to communications engineers as people who …
In this lesson, students are introduced to communications engineers as people who enable long-range communication. In the lesson demonstration, students discuss the tendency of sound to diminish with distance and model this phenomenon using a slinky. Finally, Alexander Graham Bell is introduced as the inventor of the telephone and a pioneer in communications engineering.
This is an activity about the Doppler effect. Learners begin by simulating …
This is an activity about the Doppler effect. Learners begin by simulating the noise made by a passing siren. After learning that the change in pitch results from movement, they investigate the definition of frequency, calculate change in frequency, and learn how this applies to light and the study of astronomy. This lesson requires a Doppler ball, also referred to as a buzzer ball.
This collection of activities is based on a weekly series of space …
This collection of activities is based on a weekly series of space science mathematics problems distributed during the 2012-2013 school year. They were intended for students looking for additional challenges in the math and physical science curriculum in grades 5 through 12. The problems were created to be authentic glimpses of modern science and engineering issues, often involving actual research data. The problems were designed to be one-pagers with a Teacher‰Ûªs Guide and Answer Key as a second page.
This book presents 49 space-related math problems published weekly on the SpaceMath@NASA …
This book presents 49 space-related math problems published weekly on the SpaceMath@NASA site during the 2011-2012 academic year. The problems utilize information, imagery, and data from various NASA spacecraft missions that span a variety of math skills in pre-algebra and algebra.
This activity introduces the electromagnetic spectrum. A riddle is proposed and users …
This activity introduces the electromagnetic spectrum. A riddle is proposed and users stroll through an imaginary amusement park to identify the object being described. During the journey, they discover the different types of electromagnetic energy and learn about telescopes that see the universe in these different parts of the spectrum.
In this activity, children make a mobile of galaxies; patterns and instructions …
In this activity, children make a mobile of galaxies; patterns and instructions are included. It introduces the different shapes of galaxies and their nomenclature. Note that young children will need assistance from an adult or older child to safely complete this activity.
This article explains how Earth's atmosphere scatters the light from the sun, …
This article explains how Earth's atmosphere scatters the light from the sun, thereby creating the blue color we typically associate with our sky. Supplementing this article is an explanation of the importance of scattering sunlight. The article is targeted to children ages 10-12.
This is a poster detailing the Sun and its impacts on the …
This is a poster detailing the Sun and its impacts on the Earth. Learners will be introduced to space weather, solar storms, aurorae, and the spacecraft that study the Sun and its impacts.
This is a lesson about density. Learners will relate the concept of …
This is a lesson about density. Learners will relate the concept of density to the density of dust in space. They will use mission data from the Student Dust Counter (SDC) interface to determine the density of dust grains in a volume of space in the Solar System in order to answer questions concerning the distribution of dust in the solar system. They will discover that space is much more sparsely populated with dust than they may have thought. Students discuss their findings with the class.
This a textbook on special relativity, aimed at undergraduates who have already …
This a textbook on special relativity, aimed at undergraduates who have already completed a freshman survey course. The treatment of electromagnetism assumes previous exposure to Maxwell's equations in integral form, but no knowledge of vector calculus.
This is a lesson about using light to identify the composition of …
This is a lesson about using light to identify the composition of an object. Learners will use a spectrograph to gather data about light sources. Using the data they‰Ûªve collected, students are able to make comparisons between different light sources and make conjectures about the composition of a mystery light source. The activity is part of Project Spectra, a science and engineering program for middle-high school students, focusing on how light is used to explore the Solar System.
This is a activity about how reaction wheels affect spacecraft orientation (attitude). …
This is a activity about how reaction wheels affect spacecraft orientation (attitude). Learners will observe Newton's Third Law (action-reaction) in the changes caused by a reaction wheel acting upon a spacecraft suspended from a support wire and in the ensuing interfering forces from the wire support. The experiment includes an option for demonstration and for learner investigation. Notes about gyroscopes are included.
This is a lesson about detecting atmospheres of planets. Learners will explore …
This is a lesson about detecting atmospheres of planets. Learners will explore stellar occultation events (by interpreting light curves) to determine if an imaginary dwarf planet ‰ÛÏSnorkzat‰Û� has an atmosphere. The activity is part of Project Spectra, a science and engineering program for middle-high school students, focusing on how light is used to explore the Solar System.
Students act as chemical engineers and use LEGO® MINDSTORMS® NXT robotics to …
Students act as chemical engineers and use LEGO® MINDSTORMS® NXT robotics to record temperatures and learn about the three states of matter. Properties of matter can be measured in various ways, including volume, mass, density and temperature. Students measure the temperature of water in its solid state (ice) as it is melted and then evaporated.
In the first video segment, we describe the fundamental postulate of statistical …
In the first video segment, we describe the fundamental postulate of statistical mechanics. The direct product notation we introduce in the second segment helps us to discuss the states available to a collection of many parts, which helps us, in turn, to derive the Boltzmann factor in the third segment. The fourth video segment explains how the Boltzmann factor helps us to calculate average properties for systems in thermal contact with large baths and introduces entropy (Greek letter sigma), free energy (F), and the partition function (Z).
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