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published by the Public Broadcasting Service
technical implementer: the Show of Force Productions
This video-based resource explores the physics of projectile motion through the sport of juggling. It was developed to promote understanding of what happens when an object moves in two dimensions -- horizontal and vertical -- at the same time. It includes tips on how to incorporate the video into instruction, discussion questions, and accompanying classroom activities.

This resource was developed in conjunction with the PBS series Circus. See Related Materials for a link to the full set of 8 Circus Physics video-based lessons.

Please note that this resource requires Flash.
Subjects Levels Resource Types
Classical Mechanics
- Motion in Two Dimensions
= 2D Acceleration
= Projectile Motion
Education Practices
- Technology
= Multimedia
- High School
- Lower Undergraduate
- Instructional Material
= Activity
= Instructor Guide/Manual
= Problem/Problem Set
- Assessment Material
= Test
- Audio/Visual
= Movie/Animation
Appropriate Courses Categories Ratings
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- Assessment
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Intended Users:
Access Rights:
Free access
© 2010 Public Broadcasting System
juggling video, motion videos, parabola, physics videos, projectile motion videos, video analysis, video-based learning
Record Cloner:
Metadata instance created November 18, 2013 by Caroline Hall
Record Updated:
August 19, 2020 by Lyle Barbato

Next Generation Science Standards

Motion and Stability: Forces and Interactions (HS-PS2)

Students who demonstrate understanding can: (9-12)
  • Analyze data to support the claim that Newton's second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, and its acceleration. (HS-PS2-1)

Disciplinary Core Ideas (K-12)

Forces and Motion (PS2.A)
  • Newton's second law accurately predicts changes in the motion of macroscopic objects. (9-12)
Relationship Between Energy and Forces (PS3.C)
  • When two objects interact, each one exerts a force on the other that can cause energy to be transferred to or from the object. (6-8)

AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4F. Motion
  • 9-12: 4F/H1. The change in motion (direction or speed) of an object is proportional to the applied force and inversely proportional to the mass.
  • 9-12: 4F/H4. Whenever one thing exerts a force on another, an equal amount of force is exerted back on it.
  • 9-12: 4F/H8. Any object maintains a constant speed and direction of motion unless an unbalanced outside force acts on it.

Common Core State Standards for Mathematics Alignments

High School — Algebra (9-12)

Seeing Structure in Expressions (9-12)
  • A-SSE.1.a Interpret parts of an expression, such as terms, factors, and coefficients.

High School — Functions (9-12)

Interpreting Functions (9-12)
  • F-IF.8.b Use the properties of exponents to interpret expressions for exponential functions.
Linear, Quadratic, and Exponential Models? (9-12)
  • F-LE.5 Interpret the parameters in a linear or exponential function in terms of a context.
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
(Public Broadcasting Service, Arlington, 2010), WWW Document, (https://www.thirteen.org/programs/circus/circus-circus-physics-projectile-motion/).
Circus Physics: Projectile Motion (Public Broadcasting Service, Arlington, 2010), <https://www.thirteen.org/programs/circus/circus-circus-physics-projectile-motion/>.
APA Format
Circus Physics: Projectile Motion. (2010). Retrieved July 20, 2024, from Public Broadcasting Service: https://www.thirteen.org/programs/circus/circus-circus-physics-projectile-motion/
Chicago Format
Show of Force Productions. Circus Physics: Projectile Motion. Arlington: Public Broadcasting Service, 2010. https://www.thirteen.org/programs/circus/circus-circus-physics-projectile-motion/ (accessed 20 July 2024).
MLA Format
Circus Physics: Projectile Motion. Arlington: Public Broadcasting Service, 2010. Show of Force Productions. 20 July 2024 <https://www.thirteen.org/programs/circus/circus-circus-physics-projectile-motion/>.
BibTeX Export Format
@misc{ Title = {Circus Physics: Projectile Motion}, Publisher = {Public Broadcasting Service}, Volume = {2024}, Number = {20 July 2024}, Year = {2010} }
Refer Export Format

%T Circus Physics: Projectile Motion %D 2010 %I Public Broadcasting Service %C Arlington %U https://www.thirteen.org/programs/circus/circus-circus-physics-projectile-motion/ %O application/flash

EndNote Export Format

%0 Electronic Source %D 2010 %T Circus Physics: Projectile Motion %I Public Broadcasting Service %V 2024 %N 20 July 2024 %9 application/flash %U https://www.thirteen.org/programs/circus/circus-circus-physics-projectile-motion/

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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Circus Physics: Projectile Motion:

Is Part Of Circus Physics

A link to the full collection of Circus Physics video resources for high school physics.

relation by Caroline Hall

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