1. The pressure at the bottom of a swimming pool depends on all of the following except:

 

a. the depth of the water

b. the density of the water

c. the gravity

d. the volume of water in the pool

 

Answer: _____

 

 

2. The pressure in a fluid at any point is:

 

a. greater upward

b. greater downward

c. greater laterally

d. the same in all directions

 

Answer: _____

 

 

3. Find the apparent weight of an object fully submerged in water if its volume is 2.00 m³ and its density is 4000 kg/m³.

 

a. 1960 N

b. 78,400 N

c. 98,000 N

d. 58,900 N

 

Answer: _____

 

 

4. Identical scuba tanks, except one is empty and the other is full, are at rest at the same depth. Which tank has greater buoyant force acting on it?

 

a. empty tank

b. full tank

c. the same on both

d. cannot be determined

 

Answer: _____

 

 

5. The buoyant force on an object submerged in fluid does not depend on_________.

 

a. the density of the object

b. the density of the fluid

c. the volume of the object

d. gravity

 

Answer: _____

 

 

6. A person weighing 900 N is standing on snowshoes. Each snowshoe has an area of 2500 cm². Find the pressure on the snow.

 

a. 0.18 Pa

b. 0.36 Pa

c. 1800 Pa

d. 3600 Pa

 

Answer: _____

 

 

7. A 13,000 N vehicle is lifted by a 25 cm diameter piston of a hydraulic jack. What force is applied to a 5.0 cm diameter piston?

 

a. 260 N

b. 520 N

c. 2600 N

d. 5200 N

 

Answer: _____

 

 

8. Find the pressure 17.4 m below the surface of a lake.

 

a. 1.71 x 10⁵ Pa

b. 2.72 x 10⁵ Pa

c. 1.18 x 10⁵ Pa

d. 2.65 x 10⁵ Pa

 

Answer: _____

 

 

9. An object weighs 45 N in air and 25 N when submerged in water. What is the buoyant force of the water?

 

a. 20 N

b. 25 N

c. 45 N

d. 70 N

 

Answer: _____

 

 

10. When an object floats in water, three-fourths of its volume is beneath the surface. What is the density of the object?

 

a. 1333 kg/m³

b. 1000 kg/m³

c. 750 kg/m³

d. 250 kg/m³

 

Answer: _____

 

 

11. If a piece of steel and a piece of aluminum of the same volume are dropped into water, what can be said about the buoyant force acting on each of them?

 

a. More on the iron

b. More on the aluminum

c. The same on both

d. Not enough information

 

Answer: _____