![]() ![]() Plan and conduct an investigation to provide evidence of the effects of balanced and unbalanced forces on the motion of an object.Ĭlick to view other curriculum aligned to this Performance Expectation Identify modern applications in which engineers use pulleys.Explain how pulleys could have been used by engineers in ancient times to do work.Using multiple pulleys in conjunction with motors and electronics, engineers create complex modern devices that perform much work for very little power.Īfter this lesson, students should be able to: #Mechanical advantage word problems zip#They incorporate the mechanical advantage of pulleys into their design of many modern-day structures, machines, products and tools, such as cranes, elevators, flagpoles, zip lines, motors, bicycle rings/chains, clothes lines, water well bucket/rope, rock climbing devices, window blinds and sail/fishing boats. This engineering curriculum aligns to Next Generation Science Standards ( NGSS).Įngineers are experts at exploiting the advantages of simple machines in all sorts of real-world applications that benefit society. They also learn the many ways engineers use pulleys for everyday purposes. In a hands-on activity, they see how a pulley can change the direction of a force, the difference between fixed and movable pulleys, and the mechanical advantage gained with multiple / combined pulleys. Students perform a simple demonstration to see the mechanical advantage of using a pulley, and they identify modern day engineering applications of pulleys. They learn how a pulley can be used to change the direction of applied forces and move/lift extremely heavy objects, and the powerful mechanical advantages of using a multiple-pulley system. ![]() Students continue to explore the story of building a pyramid, learning about the simple machine called a pulley. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |