The currents may have been produced to begin with by transforming the energy of motion into electrical energy.Įnergy can be transferred in various ways and between objects.ĭefine the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions.ĭefine a design problem that can be solved through the development of an object, tool, process or system and includes multiple criteria and constraints, including scientific knowledge that may limit possible solutions. In such collisions, some energy is typically also transferred to the surrounding air as a result, the air gets heated and sound is produced.Īlignment agreement: Thanks for your feedback! Light also transfers energy from place to place.Īlignment agreement: Thanks for your feedback! Energy can also be transferred from place to place by electric currents, which can then be used locally to produce motion, sound, heat, or light. When objects collide, energy can be transferred from one object to another, thereby changing their motion. Make observations to produce data to serve as the basis for evidence for an explanation of a phenomenon or test a design solution.Īlignment agreement: Thanks for your feedback!Įnergy can be moved from place to place by moving objects or through sound, light, or electric currents.Īlignment agreement: Thanks for your feedback! Energy is present whenever there are moving objects, sound, light, or heat.
This activity focuses on the following Three Dimensional Learning aspects of NGSS: Make observations to provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents.Ĭlick to view other curriculum aligned to this Performance Expectation Describe two Basic Stamp commands and the loop programming concept.Discuss the concept of energy efficiency and how it applies to light emitting diodes.Explain and demonstrate the use of light-emitting diodes and resistors.
Explain the importance of traffic lights and safety.(If they don't work, you know about it!) To design effective sequences of traffic lights, traffic engineers model and analyze traffic patterns at many street intersections over a period of time, gathering data that assists them in devising the best order and timing of traffic signals for a particular section of a city.Īfter this activity, students should be able to: Traffic lights are very important for the smooth operation of transportaion routes in cities. Traffic lights are such a common sight in large cities that their importance is often taken for granted by the hundreds of motorists who travel beneath them every day. This engineering curriculum aligns to Next Generation Science Standards ( NGSS). Knowledge gained from the activity is directly transferrable to future activities, and skills learned are scalable to more ambitious class projects. Students also design their own requirements based on real-world observations as they learn about traffic safety and work towards an interesting goal within the realm of what is important in practice. In the process, they learn about light-emitting diodes (LEDs), and how their use can save energy.
Using a Parallax® Basic Stamp 2 microcontroller, students work in teams on the engineering challenge to build a traffic light with a specific behavior. Students learn about traffic lights and their importance in maintaining public safety and order.