B. Energy change is understood in terms of forces--pushes or pulls.
C. Some forces act through physical contact, while others act at a distance.
Clarification for grades K-5: The target understanding for students in the elementary grades should focus on Big Ideas A, B, and C.
Clarification for grades 6-8: The target understanding for students in grades 6-8 should begin to transition the focus to a more specific definition of forces and changes in motion. Net forces create a change in motion. A change in momentum occurs when a net force is applied to an object over a time interval.
Grades 9-12, Standard 12: Motion - A. Motion can be measured and described qualitatively and quantitatively. Net forces create a change in motion. B. Momentum is conserved under well-defined conditions. A change in momentum occurs when a net force is applied to an object over a time interval.
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Lesson Plans
Original Student Tutorials
Perspectives Video: Professional/Enthusiasts
Perspectives Video: Teaching Ideas
Teaching Ideas
Text Resources
Tutorial
Video/Audio/Animations
Virtual Manipulatives
Student Resources
Original Student Tutorials
Learn how unbalanced forces cause a change in speed, direction or both using sports-themed, interactive tutorial.
Type: Original Student Tutorial
Use models to solve balance problems on a space station in this interactive, math and science tutorial.
Type: Original Student Tutorial
Examine contact and non-contact forces such as gravity, electrical, and magnetic forces in this interactive tutorial.
Type: Original Student Tutorial
Learn about gravity and its relationship with mass and distance in this interactive tutorial.
Type: Original Student Tutorial
Tutorial
Would a brick or feather fall faster? What would fall faster on the moon?
Type: Tutorial
Video/Audio/Animations
More than 155 planets have been found outside of our solar system since the first extra-solar planet was identified in 1995. The search has long been heavily biased towards finding massive planets with short orbits. Now, to find an Earth-like planet, scientists are looking for a planetary setup that is similar to our own, in which a Jupiter-like planet lies a good distance away from its sun. This video segment adapted from NOVA explores how the arrangement of planets in our solar system may have affected the development of life on Earth.
Type: Video/Audio/Animation
The Sun produces a solar wind — a continuous flow of charged particles — that can affect us on Earth. It can, for example, disrupt communications, navigation systems, and satellites. Solar activity can also cause power outages, such as the extensive Canadian blackout in 1989. In this video segment adapted from NASA, learn about solar storms and their effects on Earth.
Type: Video/Audio/Animation
Virtual Manipulatives
Play with objects on a teeter totter to learn about balance.
- Predict how objects of various masses can be used to make a plank balance.
- Predict how changing the positions of the masses on the plank will affect the motion of the plank
- Write rules to predict which way plank will tilt when objects are placed on it.
- Use your rules to solve puzzles about balancing.
Type: Virtual Manipulative
The students must apply force to a given object and try to push it up the ramp. They will see the forces being applied to the object at all times.
Type: Virtual Manipulative
This interactive demonstrates the impacts of the gravitational force of the sun on motion of objects in the solar system.
Type: Virtual Manipulative
Parent Resources
Teaching Idea
In this hands-on and web interactive project, students design and build a bird wing powerful enough to spin them in an office chair when it is flapped. By modifying the shape, size, and/or materials used in their design based on observations of natural and man-made transportation methods, students will learn about thrust, forces, durability, and energy use.
Type: Teaching Idea
Virtual Manipulative
Play with objects on a teeter totter to learn about balance.
- Predict how objects of various masses can be used to make a plank balance.
- Predict how changing the positions of the masses on the plank will affect the motion of the plank
- Write rules to predict which way plank will tilt when objects are placed on it.
- Use your rules to solve puzzles about balancing.
Type: Virtual Manipulative