# 5e Explore PhET Forces, Mass, and Motion for NGSS MS-PS-2-2 PDF

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(2 MB|20 pages)
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NGSSMS-PS2-2
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1. This is a bundle of 5e investigations for the PhET virtual simulations.For NGSS Middle School Physical Science Standards in Motion and Stability: Forces and Interactions (MS-PS-2) and Energy (MS-PS-3)All these investigations use simulations from PhET Interactive Simulations, University of Colorado B
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2. A bundle of all the resources I use as part of a motion and Newton's Laws story line. Supports NGSS MS-PS-2-1 and MS-PS-2-2
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• Product Description
• StandardsNEW

This is a set of Engage, Explore and Evaluate activities for NGSS MS-PS-2-2 that have students work with the PhET simulation Motion and Forces.

• In the first activity, students make observations about changes in the motion of objects when different amounts of force are applied from different directions to discover how balanced and unbalanced forces affect the motion of the cart.
• In the second activity, students are given the task to design an experiment to collect data about the acceleration of objects with different masses when the same amount force is applied or then the same amount of force is applied to objects on the same mass. Students then use that data to answer research questions.

ENGAGE AND EXPLORE Introduction to Forces (Intro to Forces)

The PhET is HTML5 so it should work on all browsers. I have used it on Chromebooks and PCs with my own students.

In this engage and explore students are given the opportunity to explore the PhET virtual lab to collect evidence to answer this question “What causes objects to move or stay still?”

Examples of Coaching Questions for this Explore

•What does each part of the model represent?  (arrows, people, cart)

•How is the applied force represented in this simulation?

•What evidence from the simulation would support that claim? Or Why might you reject that claim?

I have done this activity in several different ways. One is as a teacher lead exploration with the simulation projected on the board and as a class we discuss how to set to the tug-o-war, make predictions,discuss the rationale for the predictions and then test and check the class predictions. When I do it this way I have students refer to a class set of the Introduction to Gravity handouts but record their answers and observations into their notebooks.

EXPLORE and EVALUATE Investigating Motion and Forces and Designing an Investigation (Forces and Motion)

In this explore students are given the opportunity to explore the PhET virtual lab to design investigations to study the relationship between mass, applied force and acceleration of objects. NOTE Friction is a variable that can be adjusted in this simulation, I developed the explorations for a friction-less environment, If students are having difficulty getting accurate results check that they have set the friction to ZERO.

I usually assign this activity in Google Classroom but have also provided a PDF handout with the directions for this activity.

Depending on the skills of your students and how much time you have for the lesson, you may want to only assign one of the two questions or each team. You can then have students compare results for experiments designed to test the same question and students can also report out their finding to the other half of the class. This is a great way to have students look at experimental design and to also practice communicating results.

Contains Zipped Folder with PDFs

• Cover, TOU and Teacher Notes (5 pages)
• Intro to Forces Lab Sheet (2 pages)
• Intro to Forces Lab Answer Key (3 pages)
• Forces and Motion Lab Sheet (4 pages)
• Forces and Motion Handout for Higher Students or for class sets (2 pages)
• Forces and Motion Lab Answer Key (4 pages)

Note this is ALSO AVAILABLE AS A GOOGLE VERSION

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NGSSMS-PS2-2
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. Emphasis is on balanced (Newton’s First Law) and unbalanced forces in a system, qualitative comparisons of forces, mass and changes in motion (Newton’s Second Law), frame of reference, and specification of units. Assessment is limited to forces and changes in motion in one-dimension in an inertial reference frame, and to change in one variable at a time. Assessment does not include the use of trigonometry.
Total Pages
20 pages
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Teaching Duration
2 days
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