
Physics Quiz
Authored by Josphat Thuku
Physics
12th Grade

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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must be the Area of a heating duct that replenishes air in a room of 300 m³ every 15 minutes if air moves through it at 3 m/s, assuming constant air density?
A) 0.11 m2
B) 0.10 m2
C) 0.12 m2
D) 0.09 m2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If water is pumped at 0.5 m/s through a 2 cm diameter pipe under a pressure of 3 atm, what would be the flow speed and pressure in a 1.3 cm diameter pipe on the second floor 5 m above?
A) 2.6x10³ Pa
B) 2.5x10³ Pa
C) 2.7x10³ Pa
D) 2.8x10³ Pa
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the exit speed of water from a punctured above-ground pool if the total depth is 2.5 m and the puncture is 1 m above the ground?
A) 3.1 m/s
B) 3.0 m/s
C) 3.2 m/s
D) 2.9 m/s
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How high will water shoot up if a pipeline connected to a town's water system at street level pressure of 150 kPa breaks?
A) 15.3 m
B) 15.0 m
C) 15.5 m
D) 14.8 m
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of the aorta as mentioned in the worksheet for studying fluid flow continuity and Bernoulli's equation?
0.5 cm
1.0 cm
2.0 cm
1.5 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the worksheet, what is the speed of blood passing through the aorta?
20 cm/s
30 cm/s
40 cm/s
50 cm/s
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical radius of a capillary as given in the worksheet?
(4 x 10^-4) cm
(5 x 10^-4) cm
(6 x 10^-4) cm
(3 x 10^-4) cm
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