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Motion and forces
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Middle school
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# Newton's Law of Gravitation

The two activities included in this guide introduce students to the principles behind Newton's Law of Gravitation and help students learn aspects of the law in an interesting and engaging way. This guide provides teachers with background information... (View More)

# Newton's Second Law of Motion: Force, Acceleration and Velocity

This educational wallsheet provides several simple illustrations of Newton's Second Law. In the activity included, students study the motion shown in the drawings to decide how it relates to the object's velocity, whether or not the velocity is... (View More)

# Modeling the Expanding Universe

In this activity, students use rulers to measure distances between hypothetical galaxies and then use these distances to calculate the velocities of the galaxies. This activity is part of the "Cosmic Questions" educator's guide that was developed to... (View More)

# The Rubber Band Problem

A simple experimental apparatus made of rubber band and books is used by student teams challenged with demonstrating the concepts of friction, force, and inertia. This resource is from PUMAS - Practical Uses of Math and Science - a collection of... (View More)

# Moons, Rings, and Relationships

This is an activity about gravity. Learners will design their own experiments to explore the fundamental force of gravity and then extend their thinking to how gravity acts to keep objects like moons and ring particles in orbit. They use the... (View More)

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