buoyancy

Define density and provide its formula.

• Density = Mass x Volume
• Density = Mass / Volume
• Density = Weight / Volume
• Density = Volume / Mass

How does the density of an object affect its ability to float or sink in a fluid?

• The density of an object determines whether it will float or sink in a fluid.
• The shape of an object is the only factor that determines if it will float or sink in a fluid.
• Objects with higher density always float in fluids.
• The density of an object has no impact on its ability to float or sink in a fluid.

What units are commonly used to express density?

• meters per kilogram (m/kg)
• pounds per gallon (lb/gal)
• liters per square meter (L/m^2)
• grams per cubic centimeter (g/cm^3) or kilograms per cubic meter (kg/m^3)

What is Archimedes' Principle?

• Archimedes' Principle is related to the speed of light
• Buoyant force equals weight of displaced fluid
• Archimedes' Principle states that objects float in water due to their weight
• Archimedes' Principle is about the force of gravity on objects

How does the buoyant force on an object change when it is submerged deeper into a fluid?

• The buoyant force decreases when submerged deeper
• The buoyant force becomes repulsive when submerged deeper
• The buoyant force remains constant regardless of depth
• The buoyant force on an object increases when it is submerged deeper into a fluid.

Explain why a ship made of steel can float on water.

• Buoyancy principle
• Gravity principle
• Density principle
• Magnetic force

Provide an example of how apparent weight is used in real-life applications.

• Elevator design
• Traffic light synchronization
• Airplane wing design
• Swimming pool design

A cube of wood with a density of 0.8 g/cm³ and a volume of 100 cm³ is placed in water. Will the cube float or sink, and why?

• The cube will float because it is made of wood.
• The cube will float.
• The cube will sink due to its high density.
• The cube will sink because it is too heavy.

Explain the concept of neutral buoyancy.

• Neutral buoyancy is when an object sinks rapidly in a fluid.
• Neutral buoyancy is the state where an object neither sinks nor rises in a fluid due to the balance between the object's weight and the buoyant force acting on it.
• Neutral buoyancy occurs when an object is heavier than the fluid it is in.
• Neutral buoyancy is only applicable in gases, not liquids.

Describe the factors that determine whether an object will float, sink, or remain suspended in a fluid.

• The object's temperature compared to the fluid's temperature
• The object's shape compared to the fluid's shape
• The object's color compared to the fluid's color
• The factors that determine whether an object will float, sink, or remain suspended in a fluid are the object's density compared to the fluid's density.