A 50-Cm³ Block of Wood Is Floating on Water,and a 50-Cm³

question 16

Multiple Choice

A 50-cm³ block of wood is floating on water,and a 50-cm³ chunk of iron is totally submerged in the water.Which one has the greater buoyant force on it?

• A)the wood
• B)the iron
• C)Both have the same buoyant force.
• D)It cannot be determined without knowing their densities.

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Definitions:

Geranial

A naturally occurring aldehyde also known as citral, a component of many essential oils, characterized by a strong lemon scent.

Isoprene Units

The repeating five-carbon unit, C₅H₈, found in natural rubber and other terpenes.

Steroids

A class of organic compounds with a characteristic molecular structure containing four rings of carbon atoms; found naturally in plants, animals, and fungi, and are used in medicine, often as hormones.

Micelle

A spherical aggregate of surfactant molecules dispersed in a liquid colloid, where the hydrophilic heads face outward and the hydrophobic tails are tucked inside.