Terminal Velocity NEET Questions

Physics - Properties of Solids and Liquids

Terminal Velocity MCQ Questions


7.
The terminal velocity of a copper ball of radius 5 mm falling through a tank of oil at room temperature is 10 cm/s. If the radius of the ball is reduced to 2.5 mm, the terminal velocity of the ball will be:

NEET - 2022

A.
2.5 cm/s
B.
5 cm/s
C.
10 cm/s
D.
20 cm/s
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ANSWER :
B. 5 cm/s
8.
When an object falls through a fluid, the forces acting on it include:
A.
Magnetic force
B.
Gravitational force, drag force, and buoyant force
C.
Electrical force
D.
Nuclear force
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ANSWER :
B. Gravitational force, drag force, and buoyant force
9.
What is the effect of increasing the radius of a sphere on its terminal velocity in a fluid?
A.
Decreases
B.
Increases
C.
Remains the same
D.
Becomes zero
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ANSWER :
B. Increases
10.
If the density of the fluid is increased, the terminal velocity of an object:
A.
Increases
B.
Decreases
C.
Remains the same
D.
Becomes zero
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ANSWER :
B. Decreases
11.
Which of the following is an example of terminal velocity in real life?
A.
A plane taking off
B.
A car accelerating on a road
C.
Parachutist reaching a constant speed while falling
D.
A ball rolling on a flat surface
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ANSWER :
C. Parachutist reaching a constant speed while falling
12.
When an object reaches terminal velocity, its acceleration:
A.
Decreases continuously
B.
Increases continuously
C.
Becomes zero
D.
Becomes infinite
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ANSWER :
C. Becomes zero