CAIE A-Level Physics AS 4.3.5 The Upthrust Acting on an Object in a Fluid Is Due to a Difference in Questions
Explain atmospheric pressure and how pressure varies with altitude in the atmosphere.
- Syllabus
- 2028–2030
- Course
- Physics 9702
- Level
- AS
Exam points
- Explain atmospheric pressure and how pressure varies with altitude in the atmosphere.
CAIE A-Level Physics AS 4.3.5 The Upthrust Acting on an Object in a Fluid Is Due to a Difference in Questions question 1
[Maximum number: 1]
A ball falls through a liquid at a constant speed. It is acted upon by three forces: an upthrust, a drag force and its weight.
The liquid has a uniform density.
Which statement is correct?
A
The drag force increases with increasing depth.
B
The drag force is equal to the sum of the upthrust and weight.
C
The upthrust is constant with increasing depth.
D
The weight is greater than the sum of the drag force and the upthrust.
C
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