2.5 ARCHIMEDES PRINCIPLE F5

The upward force exerted by a liquid on an object immersed in or floating on the liquid

• pressure
• buoyant force
• normal force
• gravity

The buoyant force on floating objects equals the weight of the floating object 

• true
• false

If an object weighing 50.0 N displaces a volume of water with a weight of 10.0 N, what is the buoyant force on the object?

• 10 N
• 60 N
• 40 N 
• 20 N 

When the weight of an object is greater than the buoyant force, the object will ... 

• Sink
• Float 
• Expand
• Shrink

Archimedes' Principle states that... 

• The buoyant force acting on an object equals the volume of the fluid displaced by the object. 
• The buoyant force acting on an object equals the weight (force of gravity) of the fluid displaced by the object.
• The buoyant force acting on an object will always be equal. 

What direction is the buoyant force in?

• Downward
• Left
• Right
• Upward

The correct formula of upthrust is

• h $\rho$

• hg

• V $\rho$ g

• h $\rho$ g

Upthrust is more in sea water than pure water because

• sea water is salty

• sea water has more density than pure water

• sea water has aquatic animals

• sea water has waves

Satu objek digantung pada satu neraca spring. Kira daya apungan yang bertindak ke atas objek di dalam air.

• 65 N

• 30 N

• 35 N

• 25 N

Apakah kegunaan hidrometer ?

• Menyukat suhu cecair

• Menyukat tekanan udara

• Menyukat ketumpatan suatu cecair

• Menyukat ketumpatan suatu pepejal