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OER Matters

Learn more about the worldwide movement to make teaching and learning materials free and accessible for use and re-use by everyone.
 

Keywords: Electric Charges

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Balloons and Static Electricity

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Type: Course Related Materials
Subject: Science and Technology
Collection: Physics Education Technology (PhET) University of Colorado
Grade Level: Primary

Abstract: Why does a balloon stick to your sweater? Rub a balloon on a sweater, then let go of the balloon and it flies over and sticks to the sweater. View the charges in the sweater, balloons, and the wall.

Charges and Fields

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Type: Course Related Materials
Subject: Science and Technology
Collection: Physics Education Technology (PhET) University of Colorado
Grade Level: Secondary, Post-secondary

Abstract: Move point charges around on the playing field and then view the electric field, voltages, equipotential lines, and more. It's colorful, it's dynamic, it's free.

Double Wells and Covalent Bonds

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Type: Course Related Materials
Subject: Science and Technology
Collection: Physics Education Technology (PhET) University of Colorado
Grade Level: Post-secondary

Abstract: Explore tunneling and splitting in double well potentials. This classic problem describes many physical systems, including covalent bonds, Josephson junctions, and two state systems such as spin 1/2 particles and ammonia molecules.

Electric Field Hockey

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Type: Course Related Materials
Subject: Science and Technology
Collection: Physics Education Technology (PhET) University of Colorado
Grade Level: Primary, Secondary, Post-secondary

Abstract: Play hockey with electric charges. Place charges on the ice, then hit start to try to get the puck in the goal. View the electric field. Trace the puck's motion. Make the game harder by placing walls in front of the goal. This is a clone of the popular simulation of the same name marketed by Physics ... More »

Geometric Optics

Rating:
Type: Course Related Materials
Subject: Science and Technology
Collection: Physics Education Technology (PhET) University of Colorado
Grade Level: Primary, Secondary, Post-secondary

Abstract: How does a lens form an image? See how light rays are refracted by a lens. Watch how the image changes when you adjust the focal length of the lens, move the object, move the lens, or move the screen.

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