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Course: AP PHYSICS 1
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AP PHYSICS 1

1. Kinematics

0/29

2. Force and Translational Dynamics

0/73

3. Work, Energy, and Power

0/31

4. Linear Momentum

0/29

5. Torque and Rotational Dynamics

0/37

6. Energy and Momentum of Rotating Systems

0/27

7. Oscillations

0/21

8. Fluids

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Quiz

8.2.2 Buoyant Force – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The buoyant force on a fully submerged object depends on
its mass only
its depth only
the surface area of the fluid
the fluid density and the object volume
2.
A 0.020 m3 object is fully submerged in oil of density 800 kg m−3. The buoyant force is closest to
16 N
160 N
1600 N
16 000 N
3.
A floating object has density 750 kg m−3 in water. The fraction submerged is
0.75
0.25
0.50
1.33
4.
An object hangs under water from a scale, which reads less than in air. This is because
water reduces its mass
gravity is weaker in water
the buoyant force upward reduces the tension
the object loses volume
5.
A ship floats in sea water. Compared with its weight, the buoyant force is
smaller
larger
zero
equal
6.
The same block is placed in water, then in oil of lower density. In oil it will
float higher
float lower or sink
be unaffected
have a larger mass
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Part of 8. Fluids — see every lesson and quiz in this unit.
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