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Physics 1401

Online Quiz 15

Chapter 14 in Conceptual Physics 12th edition


Question 1. The approximate mass (in kg) of a column of air 1 cm² in area that extends from sea level to the upper atmosphere is
(a) 0
(b) 1
(c) 2
(d) 5
(e) 10
 
 
Question 2. The weight (in N) of the column of air mentioned in the previous problem is
(a) 0
(b) 1
(c) 2
(d) 5
(e) 10
 
 
Question 3. The pressure (in N/cm²) at the bottom of the column of air will be
(a) 0
(b) 1
(c) 2
(d) 5
(e) 10
 
 
Question 4. A balloon that weighs 1 N floats in the air, drifting neither up nor down. The weight (in N) of the air displaced by the balloon is
(a) 0
(b) 1
(c) 2
(d) 5
(e) 10
 
 
Question 5. When you try to blow a ping pong ball out of a funnel, you are doing battle with
(a) Archimedes' Principle
(b) Bernoulli's Principle
(c) Pascal's Principle
(d) The Peter Principle
(e) Occam's Razor
 
 
Question 6. When you replace the helium in a balloon of a given size by hydrogen gas the buoyant force (in N)
(a) Increases
(b) Decreases
(c) Remains the same
 
 
Question 7. For the balloon in the previous question, the net force (in N)
(a) Increases up
(b) Decreases up
(c) Remains the same
(d) Increases down
(e) Decreases down


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