Students gain an understanding of the factors that affect wind turbine operation. Following the steps of the engineering design process, engineering teams use simple materials (cardboard and wooden dowels) to build and test their own turbine blade prototypes with the objective of maximizing electrical power output for a hypothetical situation—helping scientists power their electrical devices while doing research on a remote island. Teams explore how blade size, shape, weight and rotation interact to achieve maximal performance, and relate the power generated to energy consumed on a scale that is relevant to them in daily life. A PowerPoint® presentation, worksheet and post-activity test are provided.
This set of problems provides students practice with calculations dealing with electric circuits. Each problem features an audio clip describing the solution process. 34 problems in the set
In this activity, students use the provided table to organize information about the average monthly time usage and energy consumption for all electrical appliances in their home. Upon collecting data and calculating costs, they draw conclusions regarding the types of appliances which are the biggest consumers of electrical energy. Teachers will need to supply the average cost of a kiloWatt-hour for the local area. Students will create a complete lab write-up at the conclusion of the activity.
Demos and activities in this lesson are intended to illustrate the basic concepts of energy science -- work, force, energy, power etc. and the relationships among them. The "lecture" portion of the lesson includes many demonstrations to keep students engaged, yet has high expectations for the students to perform energy related calculations and convert units as required. A homework assignment and quiz are used to reinforce and assess these basic engineering science concepts.
This blog is designed for North Carolina's K-12 teachers and students who are interested in the topic of energy and alternative energy (nuclear and renewables). This blog is maintained by Dana Haine, K-12 Science Education Manager for UNC-Chapel Hill's Institute for the Environment, with funding provided by Progress Energy.
The 11th grade learning experience consists of 7 mostly month-long units aligned to the Common Core State Standards, with available course material for teachers and students easily accessible online. Over the course of the year there is a steady progression in text complexity levels, sophistication of writing tasks, speaking and listening activities, and increased opportunities for independent and collaborative work. Rubrics and student models accompany many writing assignments.Throughout the 11th grade year, in addition to the Common Read texts that the whole class reads together, students each select an Independent Reading book and engage with peers in group Book Talks. Students move from learning the class rituals and routines and genre features of argument writing in Unit 11.1 to learning about narrative and informational genres in Unit 11.2: The American Short Story. Teacher resources provide additional materials to support each unit.
People often say that mankind should learn from history. Charles Dickens, whose books are considered classics, set his novel A Tale of Two Cities in the past. He wanted his readers to learn from the bloody French Revolution and from the widespread brutality in London. Both cities (Paris and London) offer the reader a glimpse into dark and dangerous times. As students read about Dickens's Victorian setting and learn his view of the French Revolution, they will think about what makes a just world. Students will have a chance to think about their own experiences, and, using techniques they have learned from Charles Dickens, they will do some writing that sends a message about your own world.
To complete the unit accomplishments, students will:
Read the Charles Dickens novel A Tale of Two Cities.
Read several short pieces, including a biography of Dickens and excerpts from other literature, to help them understand Dickens’s world and the world of the novel.
Explore new vocabulary to build their ability to write and speak using academic language.
Practice close reading and participate in several role plays and dramatic readings to help them experience the dramatic writing style of Charles Dickens.
Write a vignette and a short narrative piece, and practice using descriptive detail and precise language.
Write a reflection about the meaning of Dickens’s novel.
These questions are a guide to stimulate thinking, discussion, and writing on the themes and ideas in the unit. For complete and thoughtful answers and for meaningful discussions, students must use evidence based on careful reading of the texts.
How does good storytelling affect the reader, and how can a good story promote change in the world?
What was the Victorian view of gender roles?
How can power be abused?
What is loyalty ? What are the limits of loyalty?
In this lesson, students will discuss the actions of the Revolutionaries in France and discuss whether or not they are being fair and just.
In this lesson, students explore the Moon's habitability and sustainable resources with activities that culminate with plans for the design and creation of a lunar station.
A gear is a simple machine that is very useful to increase the speed or torque of a wheel. In this activity, students learn about the trade-off between speed and torque when designing gear ratios. The activity setup includes a LEGO(TM) MINDSTORMS(TM) NXT pulley system with two independent gear sets and motors that spin two pulleys. Each pulley has weights attached by string. In a teacher demonstration, the effect of adding increasing amounts of weight to the pulley systems with different gear ratios is observed as the system's ability to lift the weights is tested. Then student teams are challenged to design a gear set that will lift a given load as quickly as possible. They test and refine their designs to find the ideal gear ratio, one that provides enough torque to lift the weight while still achieving the fastest speed possible.
Students are introduced to gear transmissions and gear ratios using LEGO MINDSTORMS(TM) NXT robots, gears and software. They discover how gears work and how they can be used to adjust a vehicle's power. Specifically, they learn how to build the transmission part of a vehicle by designing gear trains with different gear ratios. Students quickly recognize that some tasks require vehicle speed while others are more suited for vehicle power. They are introduced to torque, which is a twisting force, and to speed the two traits of all rotating engines, including mobile robots using gears, bicycles and automobiles. Once students learn the principles behind gear ratios, they are put to the test in two simple design activities that illustrate the mechanical advantages of gear ratios. The "robot race" is better suited for a quicker robot while the "robot push" calls for a more powerful robot. A worksheet and post-activity quiz verify that students understand the concepts, including the tradeoff between torque and speed.
The class forms a "Presidential Task Force" for a week, empowered by the president to find answers and make recommendations concerning the future of the national power grid. Task force members conduct daily debriefings with their research team and prepare a report and presentation of their findings for the president, using an actual policy document as a guide. Although this activity is geared towards fifth-grade and older students and Internet research capabilities are required, some portions may be appropriate for younger students.
The combined heat and power system at Greenwich Hospital in Connecticut kept the lights on through Hurricane Sandy, and the system continues to support community resilience.
Students review the electrical appliances used at home and estimate the energy used for each. The results can help to show the energy hogs that could benefit from conservation or improved efficiency.
Students complete three different activities to evaluate the energy consumption in a household and explore potential ways to reduce that consumption. The focus is on conservation and energy efficient electrical devices and appliances. The lesson reinforces the relationship between power and energy and associated measurements and calculations required to evaluate energy consumption. The lesson provides the students with more concrete information for completing their culminating unit assignment.
Students do work by lifting a known mass over a period of time. The mass and measured distance and time is used to calculate force, work, energy and power in metric units. The students' power is then compared to horse power and the power required to light 60-watt light bulbs.
In this introductory physics activity, students will investigate the basic requirements for electricity. They will create a simple circuit for a quiz board that will light up when the correct matching pair is selected. Students will create six questions and answers for the quiz board, using electricity vocabulary terms.
Students measure the light output and temperature (as a measure of heat output) for three types of light bulbs to identify why some light bulbs are more efficient (more light with less energy) than others.
Background: students are familiar with static electricity, charge, and sparks. They also know about conservation of energy, forms of energy including potential energy, power, and work. Students will complete a variety of activities using breadboards, which will display various types of circuits and their effect on the flow of electricity.
Students use potatoes to light an LED clock (or light bulb) as they learn how a battery works in a simple circuit and how chemical energy changes to electrical energy. As they learn more about electrical energy, they better understand the concepts of voltage, current and resistance.