![]() Non-contact forces attract or repel objects from a distance, including magnetic, electric and gravitational forces. Examples of contact forces include applied, spring, drag, friction and normal forces. Contact forces result from interactions between objects that touch. All forces can be identified as either contact or non-contact. Understanding these concepts is necessary to accurately explain the movement-or lack of movement-of objects.Ī force is a push, pull or twist on an object. |Įngineers apply basic physics concepts of inertia and force in a variety of situations, such as in designing structures and vehicles of all shapes and sizes. International Technology and Engineering Educators Association - TechnologyĬopyright © 2004 Microsoft Corporation, One Microsoft Way, Redmond, WA 98052-6399 USA. In order to share information with other people, these choices must also be shared.Įxplanations of stability and change in natural or designed systems can be constructed by examining the changes over time and forces at different scales. For any given object, a larger force causes a larger change in motion.Īlignment agreement: Thanks for your feedback! All positions of objects and the directions of forces and motions must be described in an arbitrarily chosen reference frame and arbitrarily chosen units of size. The greater the mass of the object, the greater the force needed to achieve the same change in motion. The motion of an object is determined by the sum of the forces acting on it if the total force on the object is not zero, its motion will change. Plan an investigation individually and collaboratively, and in the design: identify independent and dependent variables and controls, what tools are needed to do the gathering, how measurements will be recorded, and how many data are needed to support a claim.Īlignment agreement: Thanks for your feedback! Science knowledge is based upon logical and conceptual connections between evidence and explanations.Īlignment agreement: Thanks for your feedback! This lesson focuses on the following Three Dimensional Learning aspects of NGSS: Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.Ĭlick to view other curriculum aligned to this Performance Expectation
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