#1
Which of the following best defines buoyancy?
1 answered
#2
Which property of a fluid determines its resistance to flow?
1 answered
#3
What is the SI unit of viscosity?
1 answered
#4
Which fluid property determines whether an object will sink or float in it?
1 answered
#5
Which of the following is NOT a unit of pressure?
1 answered
#6
What principle explains why ships float in water?
1 answered
#7
How does the buoyant force on an object immersed in a fluid change when it is fully submerged?
1 answered
#8
Which of the following factors does NOT affect buoyancy?
1 answered
#9
What happens to the pressure in a fluid as depth increases?
1 answered
#10
Which law states that the pressure exerted by a confined fluid is transmitted equally in all directions?
1 answered
#11
A helium balloon floats in air because:
1 answered
#12
In a hydraulic lift system, if the area of the smaller piston is 10 cm² and the area of the larger piston is 50 cm², what is the mechanical advantage of the system?
1 answered
#13
What is the term for the change in pressure experienced by a fluid when its velocity changes?
1 answered
#14
A submarine submerges by letting water into its ballast tanks. This process is an application of which principle?
1 answered
#15
Why does ice float on water?
1 answered