# Egg Drop Reflection

Assessment PS2-1: Apply Newton’s 3rd Law to design a solution to a problem involving the motion of two colliding objects.

Part 1: Draw and describe your solution to the Egg Drop problem. Be specific and include all parts of the system.

Part 2: Evaluate your solution by explaining why it was successful or unsuccessful. Focus on Newton’s 3rd law and net force.

# Energy Quiz Revisions

## The Energy Quiz measured understanding of two standards:

PS3-2: Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.

• In other words, draw/label/annotate a model that shows how PE changes when two objects are moved closer or farther apart from one another.

PS3-1: Construct and interpret graphical displays of data to describe the relationship of kinetic energy to mass of an object and to the speed of an object.

• In other words, interpret data and graphs to explain the relationship of KE & mass, and the relationship KE & velocity.

## Students that wish to revise their quiz grade may consider one of the following options:

• Option 1: Revise right away (before break)
• Potential Energy Revision:
• Develop a model that shows how PE changes in your Egg Drop device, as it is held at the 2nd floor (5.4 meters) for trial testing or the 3rd floor (10 meters) for final testing.
• Attach to the original quiz
• Kinetic Energy Revision:
• In-class Quiz Wednesday or Thursday at lunch or Thursday 2:25-3
• Option 2: Revise later (after break)
• Potential Energy Revision:
• Develop a model that shows how PE changes in your Flying Car device, as it is held at various points on the ramp and its mass is changed.
• Attach to the original quiz
• Kinetic Energy Revision:
• In-class Quiz dates TBD

# MS-PS2-4 – GRAVITY!

MS-PS2-4 – Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting object.

• Learning Objective: I can use evidence to support a claim that the force of gravitational attraction depends on mass.

# Welcome back!

Welcome 8th graders! I am thrilled that you’ve joined my class and am eager to get to know you. Click here for the syllabus and my expectations/grading.