Jectile is a software game and PowerPoint presentation designed to help teach physics students the basics of projectile motion calculations.
Product Type: Software - Game, Simulation, Problem Solving
Materials - Lecture Presentation, PowerPoint (the history of artillery and projectile motion), Lesson Plans, Handouts, Problem Solving
Curriculum: Physics / Mechanics / 2Dimensional Motion / Projectile Motion
Level: Grades 9-12 & college, algebra based
Time To Use: ~ 2 hours or 2 periods of instruction
The software is downloaded as an executive (.exe) file which, when double clicked, will install the Jectile Game & Materials Menu software on your computer.
System Requirements: PC Computer with Windows XP or newer
Jectile is a software game designed to help teach physics students the basics of projectile motion calculations. Students are required to solve five either horizontal or at an angle projectile motion problems of increasing complexity. They have ten chances or missions to complete the five problems and receive a score at the end which can be used as an assessment.
The Jectile game is accompanied by a set of materials which can be accessed from a menu that will open the PowerPoint presentation and other files in Word or PDF formats. The PowerPoint presentation entitled A Brief History of Artillery and Projectile Motion covers the period from the invention of gun powder to World War II. The point is made that as the range of artillery increased, the need to accurately perform calculations to hit the target also increased. The lesson plans explains a suggested method to use the PowerPoint and worksheets to have students develop a set of equations that will be used to play the Jectile Game. These equations are developed in terms of the variables and not numbers to allow quick calculations while playing the game.
Developing the equations required for playing the Jectile game using the PowerPoint presentation usually takes around 50 minutes or one period. And reviewing the final equation sheet and playing the Jectile game another 50 minutes or 1 period.
For further information download the Preview File.
Please e-mail email@example.com if you have any questions.
Other Materials (in Word & PDF formats)
Lesson Plans - A step by step description of one possible way to use the materials and the Jectile game.
Worksheet - The worksheet, which can be handed out to students, includes sample problems to practice using the equations that are developed. There is also a homework assignment that asks students to develop intermediate equations for the horizontal projectile motion solution.
Worksheet Answers - An answer sheet for the worksheet.
Objectives sheet - The objectives shown above which can be made into an overhead.
Final Equation Sheets - These sheets are a summary of the solved equations needed by students to play the Jectile game. One sheet is blank so that the equations can be added and another has the equations filled in.
Jectile Problem Solutions - This is a set of solutions for the five Jectile problems.
The PowerPoint presentation and Jectile game are designed to achieve the following objectives.
1) Trace the historical development of artillery and how increased range led from indirect fire to direct fire targeting
2)Understand the difficulties of indirect fire calculations and how they were overcome
3) Solve for the velocity to hit a target in terms of the variables x, y, & Ó¨ (without numbers) for two projectile motion situations:
- firing horizontally
- firing at an angle
4)Prepare a list of useful projectile motion equations and be able to solve practice problems using them
5)Solve projectile motion problems assisted by the equation list, overcome several complicating variables, and understand the
usefulness of objective 3) by playing the
PowerPoint: A Brief History of Artillery & Projectile Motion
The PowerPoint presentation consists of 27 slides that starts by following the history of artillery from the invention of gun powder through World War II. The increased range of artillery during World Wars I & II required a switch from direct fire (line of sight) to indirect fire (out of sight). This led to the need for complicated physics calculations. The graphics below show the opening screen and icons of the 27 slides.
The presentation then leads students to develop equations in terms of the variables, with no numbers, for finding the required velocity of a cannon to hit a target. First for the horizontal case of projectile motion and then for the at an angle case of projectile motion. The equations were solved for velocity instead of the angle to make the solutions simpler.
After the students have the sheet of solved equations, they are ready to play the Jectile game. This can be done in front of the classroom by having students or groups of students take turns calculating and inputting the answers, or you can have students play the game in a computer lab setting and have them show you their final score when they are done playing the game.
After clicking on the Start "button," students are taken to a set of warm up questions. They have to choose which angles for at an angle projectile motion will yield the greatest range, height, and time in the air. If they do not know the answers, they can go to the Testing Range to find out. At the testing range, students can fire the cannon at various angles and figure out the answers to the warm up questions. When all of the warm up questions are answered correctly, students are taken to the mission menu.
The scenario is that the students have to protect earth against alien invaders by firing their cannon at alien targets. There are five types of missions or projectile motion problems to solve. They must solve problem 1 before they can continue on to problem 2 and so on. As the problems increase in difficulty, so do their point values. Students have 10 missions to gather points by solving the five mission problems.
The five types of problems are:
Problem 1: Horizontal projectile motion
Problem 2: Horizontal projectile motion with a horizontal wind
Problem 3: Horizontal projectile motion but the aliens have changed or warped gravity
Problem 4: At an angle projectile motion
Problem 5: At an angle projectile motion with a horizontal wind
When the students are done their ten missions, the scoring screen will appear. It is very hard to get above 100 by guessing alone.
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Handouts & Other Materials
Purchaser may duplicate materials for use with all students in their classes only. Purchaser may modify materials but must retain the original copyright notices. None of these materials, even if modified, can be used for commercial purposes or placed on public networks or on the Internet.
Purchaser may install software on one computer at school, one computer at home, and on 10 or less computers in their classroom to be used by purchase and their students only. By buying a second license, purchaser may install software on one computer at home, one computer at home, and all computers in their classroom for use by purchaser and their students only. For computer lab installation or school site licenses, please contact Multimedia Science at firstname.lastname@example.org
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