Clicker Questions - Final Exam
Clicker Questions - Final Exam PHYS 211
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This 1 page Class Notes was uploaded by Molly O'Neil on Wednesday December 9, 2015. The Class Notes belongs to PHYS 211 at Towson University taught by Dr. Katarzyna A. Oldak in Fall 2015. Since its upload, it has received 15 views. For similar materials see General Physics I in Physics 2 at Towson University.
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Date Created: 12/09/15
Final Exam Clicker Problems While swimming near the bottom of a pool you let out a small bubble of air As the bubble rises toward the surface what happens to its diameter 9 bubble diameter increases Three containers are filled with water to the same height and have the same surface area at the base but the total weight of water is different for each Which container has the greatest total force acting on its base 9 all three are equal If the density of the object is exactly equal to the density of the fluid the object will 9 stay at any height in the fluid as long as it is totally immersed where the volumes are the same and the densities are the same Consider what happens when you push both a pin and the blunt end of a pen against your skin with the same force What will determine whether your skin will be punctured 9 the pressure on your skin You are walking out on a frozen lake and you begin to hear the ice cracking beneath you What is your best strategy for getting off the ice safely 9 lie down flat on the ice and crawl toward shore Thermometers often use mercury or alcohol in a thin glass tube but barometers never use alcohol Why 9 mercury is denser than alcohol Imagine holding two identical bricks in place underwater Brick 1 is just beneath the surface of the water and brick 2 is held about 2 feet down The force needed to hold brick 2 in place is 9 the same How is the smoke drawn up a chimney affected when there is a wind blowing outside 9 smoke rises more rapidly in the chimney
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