7th Grade Science Guide

7.1: Forces & Motion 3 Dimensions & Progressions

Unit 1

STANDARD 7.1.2 ●​ Apply Newton’s Third Law to design a solution to a problem involving the motion of two colliding objects in a system. Examples could include collisions between two moving objects or between a moving object and a stationary object. (MS-PS2-1)

CONCEPTS

SKILLS

●​ Newton’s Third Law ●​ Colliding objects

●​ Design a Solution

LEARNING PROGRESSIONS

●​ A larger force causes a larger change in motion ●​ Motion of an object is determined by sum of forces acting on it ●​ The greater the mass of an object, the greater the force needed to achieve same motion

VOCABULARY ●​ Push ●​ Pull

●​ Weight ●​ Net Force ●​ Gravity ●​ Newton’s Law ●​ Inertia

●​ Momentum ●​ Velocity ●​ Acceleration ●​ Collision ●​ Mass

●​ Balance Force ●​ Unbalanced Force

●​ Speed ●​ Friction

POSSIBLE PHENOMENA ●​ A paper airplane can fly forward when dropped straight down. Engineering Challenge – Design and build a glider capable of flying 2X when dropped from a height of 1X. ●​ Sometimes when a person throws a water balloon at me I can catch it without it breaking and sometimes it breaks when I try to catch it. Engineering Challenge: Develop a device and/or method for catching water balloons that travel a specified distance without breaking them. ●​ Slow Motion video of Golf Ball Collision/marble collision END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ●​ I can apply Newton’s Third Law to design a solution to a problem involving the motion of two colliding objects

DIFFERENTIATION IN ACTION

Skill Building

Allow students many different opportunities to view Newton’s 3rd law in motion prior to designing a solution to a problem. ●​ Pop Can Engine ●​ Rocket Races