Physics Aviary
Physics Aviary: Center of Mass Level 2
Find the center of mass of a one dimensional system of 3 particles.
Physics Aviary
Physics Aviary: Center of Mass Level 3
Find the center of mass of a two dimensional system of 4 particles.
Scholastic
Scholastic: Study Jams! Science: Our Solar System: Gravity & Inertia
A video and a short multiple-choice quiz on the topic of gravity and inertia, and how they work together to keep objects from floating off into space.
Utah STEM Foundation
Utah Stem Action Center: Angry Birds Are Mad About Physics
Learn about catapults and Newton's laws of motion.
TeachEngineering
Teach Engineering: Rocking the Boat
The concepts of stability and equilibrium are introduced while students learn how these ideas are related to the concept of center of mass. They gain further understanding when they see, first-hand, how equilibrium is closely related to...
TeachEngineering
Teach Engineering: Wow! That Captures It!
Students learn how motion capture (mo-cap) technology enables computer animators to create realistic effects. They learn the importance of center of gravity in animation and how to use the concept of center of gravity in writing an...
PBS
Pbs Kids: Dragonfly Tv: Do It: Balancing Act
An experiment kids can do at home to discover how the center of gravity can affect whether things will balance or not.
Exploratorium
Exploratorium: Science Snacks: Take It From the Top
Play with the center of gravity as you balance a set of blocks in a way that looks impossible.
Exploratorium
Exploratorium: Science Snacks: Balancing Stick
An activity to study how the position of the center of gravity is affected by the distribution of mass of an object. This activity ask students to balance a dowel on their finger and by moving the playdoh around the dowel they see how it...
Exploratorium
Exploratorium: Science Snacks: Take It From the Top
Students defy gravity by stacking blocks in different ways in this exercise. Other projects are linked to this lesson as well.
Other
A Magic Classroom: Nail Balance Puzzle [Pdf]
In this lesson, students try to balance fourteen nails on the head of one nail by outwitting gravity.
Physics Aviary
Physics Aviary: Practice Problems: Universal Gravity Problem
Students must find out the strength of the gravitational force between two spherical objects based on the size, density and distance between centers.
Other
Center for Education Partnerships: The Marble Roll
In this Science-athon, students try to make their marble roll the farthest across a flat surface, using their knowledge of forces, motion, and energy to guide them through their apparatus design. Teachers must enroll online.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: The Center of Mass
This site from the Illinois Institute of Technology provides a lab activity in which students determine the location of the center of mass of an irregularly shaped object. Observations are related to the balancing point of the object....
PBS
Pbs Teachers: 21st Century Medicine: Virtual Fear
Explore phobias - irrational fears of an object, situation or activity - and how sufferers endeavor to avoid the cause of their extreme anxiety. Perform activities to explore center of gravity, and describe its effect on sufferers of...
PBS
Pbs Teachers: Secrets of Lost Empires I: Stonehenge
Investigate center of gravity by changing the weight distribution of a suspended object.
Physics Aviary
Physics Aviary: Practice Problems: Find Mass With Torque Hard
Determine the unknown mass that is being balanced by two known masses for a meter stick balanced at its center of mass (50.0 cm mark).
NASA
Nasa: The Space Place: What's a Barycenter?
This site from NASA helps in explaining a barycenter. "In the case of the Earth and the Sun, both bodies actually revolve, or spin, around the center of the mass between them. This point is called the barycenter."
TeachEngineering
Teach Engineering: Tightrope Trials
To learn about the concept of center of mass, students examine how objects balance. They make symmetrical cut-outs of different "creatures" and experiment with how they balance on a tightrope of string. Students see the concept of center...
Open Curriculum
Open Curriculum: Velocity and Relative Motion
An illustrated article helps physics students learn about center of mass and velocity, and define the concept of inertia.
TeachEngineering
Teach Engineering: Mechanics Mania
Through ten lessons and numerous activities, students explore the natural universal rules engineers and physicists use to understand how things move and stay still. Together, these rules are called "mechanics." The study of mechanics is...
TeachEngineering
Teach Engineering: Rocket Me Into Space
One of the exciting challenges for engineers is the idea of exploration. This lesson looks more closely at Spaceman Rohan, Spacewoman Tess, their daughter Maya, and their challenges with getting to space, setting up satellites, and...
Science Education Resource Center at Carleton College
Serc: Investigating Calculating the Effect of Mass, Length and Displacement
In this physics lab activity students investigate how mass, length and angular displacement affect the period of a simple pendulum. Students control variables, testing one variable at a time, using manual techniques (stopwatch, human...
Curated OER
Etc: The Center of Population in the United States, 1790 1900
A map from 1904 of the eastern United States showing the westward progression of the centers of population from 1790 to 1900. "The centre of population is defined as 'the point at which equilibrium would be reached were the country taken...
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