ClassFlow
Class Flow: Balance and Motion: Push and Pull
[Free Registration/Login Required] Students will learn what balance, force, push and pull are. There are video clips and interactive practice of these vocabulary words and concepts.
Columbia University
The Climate System: Atmospheric Forces, Balances, and Weather Systems
The large scale horizontal flow of air in the atmosphere is driven by the imbalance of net radiation over the globe. This resource introduces us to the physical laws governing the horizontal motion of air. It also describes types of...
BBC
Bbc Schools: Revisewise Science: Forces
Use this site to review information about forces, concentrating on balanced and unbalanced forces. The information is provided in an interactive activity. There is also a factsheet presenting information on balanced and unbalanced...
Exploratorium
Exploratorium: Structures Around the World
How does that bridge stay up? What are the forces acting on that column? This site helps students understand how structures can be built by having them build their own. Also provides images of real structures for kids to compare with...
Science Education Resource Center at Carleton College
Serc: Building Big Educator's Guide Mini Activity Human Arch, Forces
In this physics/engineering activity students physically make an arch by pushing on each other with arms outstretched over head. As long as the pair of students balance each other's force their arch will stand, although it will be weak....
Science Education Resource Center at Carleton College
Serc: Introduction to Torques: A Question of Balance
Students will be introduced to torques and their importance in static balance.
Libre Text
Libre Text: Geostrophic Balance
Geostrophic balance is arguably the most central concept in physical oceanography and dynamical meteorology. A key feature of geostrophic balance is that rather than flowing from high to low pressure, the fluid actually moves parallel to...
SMART Technologies
Smart: May the Forces of Push and Pull Be With You!
Read, brainstorm, drag objects, erase to reveal answers, and move weights on a balance scale to learn about forces, mass, gravity, weight, and balance in this activity created by SMART.
Other
Footprints Science: Forces
A simple demonstration using a person on a bicycle to illustrate how thrust and resistance balance to achieve a constant rate of speed.
TeachEngineering
Teach Engineering: Sum It Up: An Introduction to Static Equilibrium
Students are introduced to static equilibrium by learning how forces and torques are balanced in a well-designed engineering structure. A tower crane is presented as a simplified two-dimensional case. Using Popsicle sticks and hot glue,...
Physics Classroom
The Physics Classroom: Newton's Laws
A four-lesson e-textbook covering topics in Newton's Laws. Tutorials include informational text,animations, interactive activities, and quick, interactive comprehension checks throughout the lessons.
Hunkins Experiments
Hunkin's Experiments: Balance
Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This pair of...
Curated OER
Zona Land: Galileo and Inertia
A tutorial with accompanying animations on classical mechanics. Well-illustrated. Good navigation.
CK-12 Foundation
Ck 12: Physical Science: Newton's Third Law
[Free Registration/Login may be required to access all resource tools.] Newton's Third Law of Motion - action and reaction forces and why they are not balanced forces.
Migration Policy Institute
Migration Policy Institute: South Korea: Balancing Labor Demand With Strict Control
This article examines South Korea's changing labor force, as their economy is growing and many refugees from North Korea look to earn a living. (Date of Article: Dec. 2004)
ClassFlow
Class Flow: Forces in Action
[Free Registration/Login Required] In this unit children apply their knowledge of a variety of forces to contexts in which objects are stationary because forces on them are balanced. Children learn about the changes in motion which occur...
PBS
Pbs Teachers: Balancing Balls on Air
Investigate how the force of moving air from a blow dryer interacts with the force of gravity to keep a ping-pong ball perfectly balanced in midair.
Exploratorium
Exploratorium: Science Snacks: Balancing Ball: Suspend a Ball in a Stream of Air
In this lesson plan students learn about air flow using a suspended ball in an air stream.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Measuring the Gravitational Constant, G
A demonstration/lab idea for determining the numerical value of the universal gravitation constant using a torsion balance.
TryEngineering
Try Engineering: A Question of Balance
Students work in teams to fill jars with a product that is uniform in weight or count. Lesson investigates how manufacturing engineers use weight scales and measurement to develop systems that can create consistent products.
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...
University of California
Organic Structures:the Architecture of Life
Article discusses how objects in nature are held together through balanced forces. Scroll midway down to find info on microtubules and microfilaments. Links to excellent electron micrographs.
PBS
Pbs: American Experience: Golden Gate Bridge
The perfect site on the Golden Gate Bridge! PBS provides bridge math, great pictures of before, during, and after the construction of the bridge, and a special section called "Balancing Forces," that demonstrates how the "tension" of the...
Science Buddies
Science Buddies: Tightening the Turns in Speed Skating
Fast turns around the track can become your laboratory tests in these experiments, whether you skate on ice, wood, or pavement. The goal is to determine which type of turns are best in a race - tight, medium, or wide - and then to figure...
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