ATAR Notes: Forum
VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Physics => Topic started by: ricecako on November 25, 2014, 10:13:00 am
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Hey I was wondering if anyone could give me some guidance on the physics tournament for 1/2 physics students this year. The topic is “If you hold a Ping-Pong ball above the ground and release it, it bounces. The nature of the collision changes if the ball contains liquid. Investigate how the nature of the collision depends on the amount of liquid inside the ball and other relevant parameters.”
I have collected a set of data but I'm unsure of the theory behind them. The ball bounces the highest when it's empty, and the height gradually decreases until it hits a minimum at half full, and gradually increases until it's full.
1. How do you explain the movement of the water inside the ball during the bounce?
2. And how does that affect the bounce?
3. How does the viscosity of the liquid inside the ball affect the bounce? Any help would be greatly appreciated :)