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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