Physics Name:
North Allegheny SH
Mr. Neff Period:
Elasticity Worksheet
On Mr. Neff's webpage, click on
Elasticity of Collisions under Linear Momentum (Chapter
7).
In case the link does not work for you, the address of the site
you need is:
http://media.pearsoncmg.com/bc/aw_young_physics_11/pt1a/Media/Momentum/CollisionsElasticity/Main.html
On the right side of the screen, you'll see Question 1 and a square link that looks like this:
Click this link, and a simulator will pop up on the left. The simulator shows two pendulums of which you can vary the ELASTICITY. The value of each pendulum's elasticity is located in the boxes at the bottom of the simulator and can be controlled by the sliders to the right of each box.
1. Play with the simulator for a few minutes. Vary the elasticity of each pendulum and run the simulator several times. What effect does the elasticity have on the collision? Explain using words AND sketches.
2. Elasticity can be thought of as a percentage. How would a collision that is 0% elastic (elasticity of 0.0) compare to a collision that is 50% (elasticity of 0.5) compare to a collision that is 100% elastic (elasticity of 1.0)? Explain using words AND sketches.
3. Question 2 asks which would be more likely to topple its block, the more elastic collision or the less elastic (inelastic = 0% elastic) collision. Making a prediction will open a simulator. Run the simulator without making any changes. What do you observe (you MUST use words AND sketches)?
4. Question 3 has the same premise as Question 2, but with a focus on impulse. Making a prediction will open a simulator. This time, the simulator will include a graph of force vs. time. Run the simulator without making any changes. What do you observe (you MUST use words AND sketches)?