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Transcript
Investigating Projectile Motion
http://www.colorado.edu/physics/phet
Your Learning Goal is to be able to:
● Predict how varying conditions will effect the path of a projectile and explain
your reasoning.
● Use the PhET simulation to confirm or disprove your predictions.
● Explain why your predictions were correct or incorrect.
1. Take 30 minutes to discuss with your partner how the following variables will affect a
projectile’s motion (how far it goes, how high it goes, how long before it hits the
ground, etc.) when there is NO air resistance. Write a statement of what will happen
for each, giving an explanation or reason.
Angle from the horizontal –
Initial Speed –
Mass of the object –
Diameter of the object –
How would the affect of these variables change if there were air resistance?
Angle from the horizontal –
Initial Speed –
Mass of the object –
Diameter of the object –
_________________________________
‫ אין לעשות‬.‫קובץ זה נועד אך ורק לשימושם האישי של מורי הפיזיקה ולהוראה בכיתותיהם‬
‫ פרסום באתר אחר (למעט‬,‫שימוש כלשהו בקובץ זה לכל מטרה אחרת ובכלל זה שימוש מסחרי‬
‫ העמדה לרשות הציבור או הפצה בדרך אחרת כלשהי של‬,)‫אתר בית הספר בו מלמד המורה‬
‫קובץ זה או כל חלק ממנו‬.
2. Log onto the website above. Click on the “Go to Simulation”. Scroll down the
screen and click on the Projectile Motion simulation.
3. Take 5 minutes to play with the simulation to get familiar with the controls. Now
vary ONE variable at a time to determine how that variable affects the projectile’s
motion (how far it goes, how high it goes, how long before it hits the ground, etc.).
4. Write a statement(s) that explains how each variable effects projectile motion.
Explain why this happens.
5. For your final write up, please include the following in the given format. Remember
that this is a formal write up so please do not abbreviate or use symbols and check
your spelling/ grammar.
Variable Name (state whether it was with or without air resistance.)
Prediction – What did you predict before you used the simulation? Give your
reasons.
Observation – What did you observe in the simulation? Was your reasoning
correct? If not, explain why.
Example:
Angle from the Horizontal (without air resistance)
Prediction - I predict that the greater the angle the farther the object will travel
both up and out. It will not be close to the ground and so gravity will
not be able to pull it to the ground as fast and it will have more time to
travel.
Observation – We observed that the object travels farthest with an angle of …
My prediction was not correct because …
_________________________________
‫ אין לעשות‬.‫קובץ זה נועד אך ורק לשימושם האישי של מורי הפיזיקה ולהוראה בכיתותיהם‬
‫ פרסום באתר אחר (למעט‬,‫שימוש כלשהו בקובץ זה לכל מטרה אחרת ובכלל זה שימוש מסחרי‬
‫ העמדה לרשות הציבור או הפצה בדרך אחרת כלשהי של‬,)‫אתר בית הספר בו מלמד המורה‬
‫קובץ זה או כל חלק ממנו‬.