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Buoyancy Worksheets – MCQ worksheet | Multiple Choice Questions from the Buoyancy of Fluids chapter – physics

Buoyancy of Fluids (physics) – MCQ worksheets with Questions & answers + other exercises

Buoyancy of the fluids – MCQ Worksheet (with answer)

  1. Which statement explains buoyant force?
    a. Denser fluids exert less pressure.
    b. Fluid pressure is greater at greater depths.
    c. An object weighs less in water.
    d. all of the above
  2. What determines whether an object floats or sinks in water?
    a. the buoyant force acting on the object
    b. the force of gravity acting on the object
    c. the object’s weight
    d. all of the above
  3. Ice cubes float on water because ice is
    a. less dense than water.
    b. colder than water.
    c. heavier than water.
    d. less stable than water.
  4. When you sit in a tub of bathwater, the water rises because it
    a. becomes less dense.
    b. is displaced.
    c. gets warmer.
    d. floats.
  5. Buoyancy is a property of
    a. gases.
    b. liquids.
    c. solids.
    d. two of the above
  6. Where is water pressure greatest on an object in the water?
    a. on top of the object
    b. on the sides of the object
    c. on the bottom of the object
    d. two of the above
  7. You feel lighter in the water than on land because
    a. gravity is not as strong in the water.
    b. the buoyant force of the water counters some of your weight.
    c. your mass is less in the water than on land.
    d. you are trying to stay afloat.

Answers to MCQ Worksheet on Buoyancy

Multiple Choice

  1. b
  2. d
  3. a
  4. b
  5. d
  6. c
  7. b

Matching definition with a term – worksheet from Buoyancy chapter

Matching: Match each definition with the correct term.

1. amount of mass in a given volume
2. force that causes an object to sink in a fluid
3. to remain at or near the surface of a fluid
4. force that causes an object to float on a fluid
5. act in which an object moves fluid out of its way
6. ability of a fluid to exert an upward force
7. measure of the force of gravity pulling down on an object

a. buoyant force
b. displacement
c. buoyancy
d. float
e. weight
f. gravity
g. density

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Answer – Matching


  1. g
  2. f
  3. d
  4. a
  5. b
  6. c
  7. e

Fill in the Blanks – worksheet from Buoyancy chapter

Fill in the Blank: Fill in the blank with the appropriate term.

  1. A fluid exerts __ force on objects placed in the fluid
  2. Buoyant force and the force of __ determine whether an object sinks or floats.
  3. If an object’s weight is greater than the buoyant force on the object, the object will __.
  4. A less dense substance usually __ in a fluid with greater density.
  5. The amount of fluid displaced by an object equals the __ of the object.
  6. Buoyant force equals the __ of the displaced fluid.
  7. __ law explains why a heavy ship floats.

Answer – Fill in the Blank

Fill in the Blank

  1. buoyant
  2. gravity
  3. sink
  4. floats
  5. volume
  6. weight
  7. Archimedes’

Also Read:

Pressure of fluid MCQ Worksheet

Force MCQ

Machines – MCQ

MCQ worksheet – Motion [PDF]

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