WorksheetsReview on Fluids - AP Physics 1
Total questions: 20
Worksheet time: 10mins
An object is fully submerged in water and experiences a buoyant force equal to:
A. Its own weight
B. The weight of the displaced water
C. Its volume multiplied by its density
D. The atmospheric pressure
If an object floats in a fluid, the buoyant force equals:
A. Zero
B. The volume of fluid displaced
C. The weight of the object
D. The density of the fluid
Archimedes’ Principle states that:
A. Fluid pressure is the same at all depths
B. The buoyant force equals the object’s weight
C. The buoyant force equals the weight of displaced fluid
D. Objects sink if they’re denser than water
What happens when something is less dense than water?
A. It floats
B. It sinks
C. Nothing
The SI unit of density is:
A. kg
B. m³
C. kg/m³
D. N/m²
A 2 m³ block has a mass of 1000 kg. Its density is:
A. 5000 kg/m³
B. 2000 kg/m³
C. 500 kg/m³
D. 2 kg/m³
Pressure in a fluid increases with:
A. Surface area
B. Depth
C. Temperature
D. Height above the surface
The SI unit of pressure is:
A. Newton
B. Pascal
C. Joule
D. Bar
A submarine sinks when:
A. Its density decreases
B. Buoyant force increases
C. Weight exceeds buoyant force
D. Displacement increases
Bernoulli’s principle explains that as fluid speed increases, pressure:
A. Increases
B. Decreases
C. Remains constant
D. Is zero
A hydraulic system works based on:
A. Bernoulli’s principle
B. Pascal’s principle
C. Newton’s law
D. Archimedes’ principle
Three identical books are stacked vertically. The normal force of book 1 on book 2 is:
A. Equal to the weight of one book.
B. Less than the weight of one book.
C. Greater than the weight of one book.
The buoyant force on an object submerged in a liquid depends on
A. The object’s mass.
B. The object’s volume.
C. The density of the liquid.
D. All of the above.
Bernoulli’s equation is a relationship between a fluid’s
A. Temperature and volume.
B. Volume and pressure.
C. Mass and density.
D. Speed and pressure.
When a viscous fluid flows in a tube, its velocity is
A. Greatest at the wall of the tube.
B. Greatest at the center of the tube.
C. The same everywhere.
An iceberg floats in a shallow sea. What can you say about the pressures at points 1 and 2?
A. p1 > p2
B. p1 = p2
C. p1 < p2
What can you say about the pressures at points 1 and 2?
A. p1 > p2
B. p1 < p2
C. p1 = p2
What can you say about the pressures at points 1, 2, and 3?
A. p1 = p2 = p3
B. p1 = p2 > p3
C. p1 > p2 = p3
D. p1 > p2 > p3
E. p1 < p2 = p3
True or False: Both gas and liquids are fluids.
True
False
If a fluid has a mass of 20kg and a volume of 5 m^3, then what is it's density?
4 kg/m^3
0.25 kg/m^3
100 kg/m^3
