Induced EMF in a coil of wire
Students use a simple set up consisting of a coil of wire and a magnet to visualize induced EMF. First, students move a coil of wire near a magnet and observe the voltage that results. They then experiment with moving the wire, magnet, and a second, current carrying coil. Students connect the coil to a circuit and the current from the induced EMF charges a conductor.
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.
Magnetic Fields Matter
This lesson introduces students to the effects of magnetic fields in matter addressing permanent magnets, diamagnetism, paramagnetism, ferromagnetism, and magnetization. First students must compare the magnetic field of a solenoid to the magnetic field of a permanent magnet. Students then learn the response of diamagnetic, paramagnetic, and ferromagnetic material to a magnetic field. Now aware of the mechanism causing a solid to respond to a field, students learn how to measure the response by l
Working as engineering teams, students design and create model beam bridges using plastic drinking straws and tape as their construction materials. Their goal is to build the strongest bridge with a truss pattern of their own design, while meeting the design criteria and constraints. They experiment with different geometric shapes and determine how shapes affect the strength of materials.
Students learn that wind and storms can form at the boundaries of interacting high and low pressure air masses. They learn the distinguishing features of the four main types of weather fronts (warm fronts, cold fronts, stationary fronts and occluded fronts) and how these fronts are depicted on a surface weather analysis, or weather map. Students also learn several different ways that engineers help with storm prediction, analysis and protection.
Let Your Ears do the Walking
In the previous lesson, students learned about the issue of bycatching by fisheries and how it affects marine habitats. Dolphins are one of the main species affected by bycatching. Dolphins use echolocation to identify the location of objects in the water, but they have difficulty identifying nets, and thus can be caught accidentally. Students will learn how echolocation works, why certain animals use it to determine the size, shape, and distance of objects, and how humans can potentially take a
Does Contact Area Matter?
Using the same method for measuring friction that was used in the previous lesson (Discovering Friction), students design and conduct an experiment to determine if the amount of area over which an object contacts a surface it is moving across affects the amount of friction encountered.
Racing with the Sun - Creating a Solar Car
Students use engineering design principles to construct and test a fully solar powered car. Several options exist, though we recommend the “Junior Solar Sprint” (JSS) Car Kits that can be purchased with direction from the federal government. Using the JSS kit from Solar World, students were provided with a photovoltaic panel that produces ~3V at ~3W. An optional accessory kit also available from Solar World includes wheels, axels and drive gears. A chassis must be built additionally. Balsa w
Asteroid Impact is an 8-10 class long (350-450 min) earth science curricular unit where student teams are posed with the scenario that an asteroid will impact earth. They must design the location and size of underground caverns to save the people from uninhabitable earth for one year. Driven by this adventure scenario, student teams (1) explore general and geological maps, (2) determine the area of their classroom to help determine the cavern size required, (3) learn about map scales, (4) test r
Forces on the Human Molecule
Students will conduct several simple lab activities to learn about the five fundamental load types that can act on structures: tension, compression, shear, bending, and torsion. In this activity, students will play the role of molecules in a beam subject to various loading schemes.
The invasion has taken place and we need to find a new home. To ensure your survival beyond earth’s occupation you must design a shelter that can be built on another planet. Students will research the characteristics of a planet of their choice. They will design a shelter that will allow them to survive on a new planet, and explain it in words.
Survey of London Monograph 1 - Trinity Hospital, Mile End
The architectural history of the Trinity Hospital, or College, built in 1695 by the Trinity Corporation.
The Great Stagnation: What can Policy Makers do? [Audio]
Speaker(s): Professor David Webb, Dr Sushil Wadhwani | Professor David Webb is Head of the Department of Finance at LSE. Specialising in financial economics and monetary theory, specifically the analysis of bankruptcy and financial contracts, David has made notable contributions to the field over the past 25 years, publishing in a range of Economic journals. He has held an editorship of Economica since 1988 and Associate Editorship of the Journal of Banking and Finance since 1995. Having obtaine
Document skills : maps and plans
As a specialist medium, maps and plans can be a challenge to use and it is not always immediately obvious just what can be learned from them. This resource demonstrates how the researcher can use these documents to gain varied insights about a particular place and aspects of its history. The resource includes a glossary and bibliography. Illustrative images of items from our collections appear throughout.
1 About working with others Very few people study or work in complete isolation. Some courses now set projects and assignments that need to be completed in pairs or groups, either face-to-face or using econferencing. Even if your course does not formally require you to do this, working with others is an important part of your skills portfolio. Most jobs require you to work as part of a team, and employers value individuals who can demonstrate this. In working on a work project or an assignment with others – in p
Very few people study or work in complete isolation. Some courses now set projects and assignments that need to be completed in pairs or groups, either face-to-face or using econferencing. Even if your course does not formally require you to do this, working with others is an important part of your skills portfolio. Most jobs require you to work as part of a team, and employers value individuals who can demonstrate this.
In working on a work project or an assignment with others – in p
9.1.1 What is an rtf file?
Frightened of the internet? This unit will help you make effective use of the internet, giving you the basic skills required for using web-based resources. Useful tricks and tips are provided as well as information on web browsers, the main features of a browser window, how to look at websites, using hyperlinks, searching for information on the internet, copying text, avoiding computer viruses, and using PDFs.
Boiler Bytes: Students design 'snobot' to clear walks during winter
Mechanical engineering students developed a 'snobot,' a robot running on batteries and sensors, which can remove snow without human involvement. The invention was part of a senior design project.