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Computer Program Detail Page

Item Picture
written by Francisco Esquembre
supported by the National Science Foundation
This interactive simulation shows an airplane flying at constant horizontal velocity preparing to drop relief supplies to a small island. Download Simulation Below As captain of the plane, you must determine when to release the package and activate the release button. The trajectory of the falling package is traced onscreen. If you were too far off, the package will drop in the ocean. The motion can be viewed from the perspective of a person standing on the island or an airplane flying nearby. Extend the learning by activating air friction to see how this variable affects the motion of the projectile.

This item was created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations.

Please note that this resource requires at least version 1.5 of Java (JRE).
Editor's Note: Students may insist that there is a horizontal force acting upon the package since it has a horizontal motion. See Annotation for an editor-recommended tutorial that will explain what is happening (the horizontal motion of the package results from its inertia).
View the source code document attached to this resource
Subjects Levels Resource Types
Classical Mechanics
- Motion in Two Dimensions
= Projectile Motion
- Newton's First Law
= Inertia in Motion
- Newton's Second Law
= Force, Acceleration
Education Practices
- Active Learning
= Modeling
- High School
- Lower Undergraduate
- Instructional Material
= Curriculum support
= Interactive Simulation
= Simulation
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- New teachers
  • Currently 4.5/5

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Intended Users:
Learner
Educator
Format:
application/java
Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Francisco Esquembre
Keywords:
2d motion, air drop, airplane, EJS, Easy Java Simulation, computer model, gravitation
Record Cloner:
Metadata instance created April 16, 2010 by Wolfgang Christian
Record Updated:
June 12, 2014 by Andreu Glasmann
Last Update
when Cataloged:
April 15, 2010
Other Collections:

AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4B. The Earth
  • 6-8: 4B/M3. Everything on or anywhere near the earth is pulled toward the earth's center by gravitational force.
4F. Motion
  • 9-12: 4F/H2. All motion is relative to whatever frame of reference is chosen, for there is no motionless frame from which to judge all motion.
  • 9-12: 4F/H8. Any object maintains a constant speed and direction of motion unless an unbalanced outside force acts on it.

11. Common Themes

11B. Models
  • 6-8: 11B/M1. Models are often used to think about processes that happen too slowly, too quickly, or on too small a scale to observe directly. They are also used for processes that are too vast, too complex, or too dangerous to study.

AAAS Benchmark Alignments (1993 Version)

11. COMMON THEMES

B. Models
  • 11B (6-8) #3.  Different models can be used to represent the same thing. What kind of a model to use and how complex it should be depends on its purpose. The usefulness of a model may be limited if it is too simple or if it is needlessly complicated. Choosing a useful model is one of the instances in which intuition and creativity come into play in science, mathematics, and engineering.
The Physics Classroom Multimedia Studio: The Plane and the Package (Editor: Caroline Hall)
Date: 07/07/2010

This is a link to an editor-recommended tutorial covering the same topic as the Easy Java Simulation Air Drop model. It will help students understand why there is no horizontal force acting on the dropped package. It experiences horizontal motion as a result of its own inertia.

The Physics Classroom: The Plane and the Package (html)

This resource is part of 2 Physics Front Topical Units.


Topic: Kinematics: The Physics of Motion
Unit Title: Motion in More Than One Dimension

This simulation features an airplane flying at constant horizontal velocity, preparing to drop relief supplies to a small island.  As captain of the plain, you must calculate the release point for dropping the package and press the red release button at the right moment. The trajectory of the falling package is traced onscreen. If your calculations were off, it will dump in the ocean. Question for students to ponder: what does inertia have to do with it?

Link to Unit:

Topic: Dynamics: Forces and Motion
Unit Title: Newton's First Law & Inertia

This simulation shows an airplane flying at constant horizontal velocity preparing to drop relief supplies to a small island. As captain of the plane, the student must calculate the release point for dropping the package. Students may insist that there is a horizontal force acting upon the package since it has a horizontal motion. Actually, the horizontal motion of the dropped package results from its inertia.

Link to Unit:
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
F. Esquembre, Computer Program TWO DIMENSIONAL AIR DROP MODEL, Version 1.0 (2010), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9972&DocID=1592).
AJP/PRST-PER
F. Esquembre, Computer Program TWO DIMENSIONAL AIR DROP MODEL, Version 1.0 (2010), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9972&DocID=1592>.
APA Format
Esquembre, F. (2010). Two Dimensional Air Drop Model (Version 1.0) [Computer software]. Retrieved July 24, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9972&DocID=1592
Chicago Format
Esquembre, Francisco. "Two Dimensional Air Drop Model." Version 1.0. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9972&DocID=1592 (accessed 24 July 2014).
MLA Format
Esquembre, Francisco. Two Dimensional Air Drop Model. Vers. 1.0. Computer software. 2010. Java (JRE) 1.5. 24 July 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9972&DocID=1592>.
BibTeX Export Format
@misc{ Author = "Francisco Esquembre", Title = {Two Dimensional Air Drop Model}, Month = {April}, Year = {2010} }
Refer Export Format

%A Francisco Esquembre
%T Two Dimensional Air Drop Model
%D April 15, 2010
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9972&DocID=1592
%O 1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Esquembre, Francisco
%D April 15, 2010
%T Two Dimensional Air Drop Model
%7 1.0
%8 April 15, 2010
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9972&DocID=1592


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Two Dimensional Air Drop Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Two Dimensional Air Drop.

relation by Wolfgang Christian

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