# ALEX Classroom Resource

## Forces of Gravity and Air Resistance

Classroom Resource Information

Title:

Forces of Gravity and Air Resistance

URL:

https://aptv.pbslearningmedia.org/resource/midlit11.sci.splgrav/forces-of-gravity-and-air-resistance/

Content Source:

PBS
Type: Interactive/Game

Overview:

In this blended lesson supporting literacy skills, students watch videos about gravity and investigate the motion of falling objects on Earth and on the Moon. They examine how the force of gravity acts on falling objects and how air resistance counteracts gravity. This resource is part of the Inspiring Middle School Literacy Collection. This lesson is a great resource to use to give students background information on gravity and forces before they conduct a test of a falling object.

Content Standard(s):
 Science SC2015 (2015) Grade: 5 7 ) Design and conduct a test to modify the speed of a falling object due to gravity (e.g., constructing a parachute to keep an attached object from breaking).* Unpacked Content Scientific And Engineering Practices:Constructing Explanations and Designing SolutionsCrosscutting Concepts: Cause and EffectDisciplinary Core Idea: Motion and Stability: Forces and InteractionsEvidence Of Student Attainment:Students: Design a test to modify the speed of a falling object. Conduct a test to modify the speed of a falling object. Collect and record data including data before and after the modification is added.Teacher Vocabulary:gravity design conduct gravitational forceKnowledge:Students know: The gravitational force exerted by Earth on objects is directed downward towards the center of Earth. How an engineering design process is used to design and conduct a test. The properties (surface area, substance, weight) of different materials used to modify the speed of a falling object will affect the fall.Skills:Students are able to: Apply scientific ideas to solve design problems. Generate and compare multiple solutions to a problem based on how well they meet the criteria and constraints of the design solution.Understanding:Students understand that: A device added to a falling object can cause the speed to be modified.AMSTI Resources:AMSTI Module: Earth: Gravity and Space Alabama Alternate Achievement Standards AAS Standard: SCI.AAS.5.7- Identify solutions designed to reduce the effects of a falling object due to gravity (e.g., a parachute to keep an attached object from breaking).
Tags: Earth, gravitational force, gravity, moon