Polymers - Playful Polymers Inspired By Nature

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Quizzes Created: 1 | Total Attempts: 79
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  • 1/10 Questions

    Synthetic silk is called _______________.

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About This Quiz

Polymers are a fascinating part of our lives. We use polymers everyday.

Polymers - Playful Polymers Inspired By Nature - Quiz

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  • 2. 

    The word Polymer can be divided into two parts - Poly- means "many" and -mer means "part" or "segment".

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the word "polymer" is derived from two Greek roots: "poly-" which means "many" and "-mer" which means "part" or "segment". Therefore, the word "polymer" literally means "many parts" or "many segments". This explanation supports the statement that the word "polymer" can be divided into two parts - "poly-" meaning "many" and "-mer" meaning "part" or "segment".

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  • 3. 

    Polymer is a chemical compound formed from long chains of the same molecule group, repeating over and over.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Polymer is indeed a chemical compound that is formed by linking together many repeating units of the same molecule group. These repeating units, called monomers, join together through chemical bonds to form long chains. This characteristic of polymers allows them to have unique properties such as flexibility, strength, and durability. Therefore, the statement "Polymer is a chemical compound formed from long chains of the same molecule group, repeating over and over" is true.

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  • 4. 

    Natural Polymers are ones that can come from plants.  These are made of a polymer called cellulose, starch, and rubber.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Natural polymers are indeed ones that can come from plants. Cellulose, starch, and rubber are examples of natural polymers that are derived from plant sources. Cellulose is a major component of plant cell walls, starch is a carbohydrate storage molecule found in plants, and rubber is produced by certain plants as a defense mechanism. Therefore, the statement is true.

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  • 5. 

    When_________________  are formed in a polymer, its chains of molecules are connected in several places, producing a stronger and more elastic polymer.

    Correct Answer
    cross-links
    Explanation
    When cross-links are formed in a polymer, its chains of molecules are connected in several places, producing a stronger and more elastic polymer. Cross-links act as bridges between the polymer chains, creating a three-dimensional network. This network restricts the movement of the chains, making the polymer more rigid and resistant to deformation. Additionally, the presence of cross-links allows the polymer to stretch and then return to its original shape, providing elasticity. Overall, the formation of cross-links enhances the mechanical properties of the polymer, making it stronger and more flexible.

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  • 6. 

    The following are all examples of a particular type of polymer that comes from ________.* Keratin*Collagen*Gelatin*Silk - When Wallace Carothers invented nylon, he made a polymer with a structure similar to that of silk. Natural materials - BIOMIMICRY*Enzymes*Chitin  - is the strong waterproof stuff that crustaceans like crabs and shrimp

    Correct Answer
    Proteins
    protein
  • 7. 

    From what country did the word Borax originate?

    • Mesopotamia

    • Egypt

    • Persia

    • Syria

    • Israel

    Correct Answer
    A. Persia
    Explanation
    Persia is the correct answer because historical evidence suggests that the word Borax originated in Persia, which is present-day Iran. Persia was known for its extensive mineral resources, including borax deposits, which were used for various purposes such as cleaning, preserving food, and making glass. The word "borax" itself is believed to have derived from the Persian word "burah," meaning white. Therefore, Persia is the most likely country of origin for the word Borax.

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  • 8. 

    The Molecular formula for Borax is written as follows: Na2B4O7·10H2O.Which of the following is correct?(This question may be a bit difficult)

    • Na2 = Two sodium atoms. These bond with the tetraborate molecule.

    • Na2 = Naicinum atoms.

    • B4O7=Tetraborate ion. This ion contains four boron atoms and seven oxygen atoms

    • 10H2O = Sodium water with 10 molecules.

    • 10H2O =Waters of hydration, these are water molecules that are present in the crystal structure.

    Correct Answer(s)
    A. Na2 = Two sodium atoms. These bond with the tetraborate molecule.
    A. B4O7=Tetraborate ion. This ion contains four boron atoms and seven oxygen atoms
    A. 10H2O =Waters of hydration, these are water molecules that are present in the crystal structure.
    Explanation
    The molecular formula for Borax, Na2B4O7·10H2O, indicates that there are two sodium atoms (Na2) which bond with the tetraborate ion (B4O7). The tetraborate ion consists of four boron atoms and seven oxygen atoms. Additionally, there are ten water molecules (10H2O) present in the crystal structure of Borax, known as waters of hydration. Therefore, the correct answer is that Na2 represents two sodium atoms bonding with the tetraborate molecule, B4O7 represents the tetraborate ion, and 10H2O represents the waters of hydration.

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  • 9. 

    The following playful polymer is considered non-Newtonian fluids because they do not behave as predicted by Newton's laws.

    • Borax

    • Slime

    • Cornstarch

    • Water

    • Ketchup

    Correct Answer(s)
    A. Slime
    A. Ketchup
    Explanation
    Slime and ketchup are considered non-Newtonian fluids because they do not follow Newton's laws of viscosity. Unlike Newtonian fluids, which have a constant viscosity regardless of the applied force, non-Newtonian fluids like slime and ketchup exhibit variable viscosity. Their viscosity changes depending on the amount of force applied to them. For example, slime can behave like a liquid when poured slowly, but can also act like a solid when a sudden force is applied. Similarly, ketchup can be thick and resist flow until it is shaken or squeezed, after which it becomes more fluid.

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  • 10. 

    Which of the following materials is common to making a polymer ball, slime, and floam?

    • Borax

    • Potato starch

    • PVA glue such as Elmers

    • Cornstarch

    • Sugar

    Correct Answer(s)
    A. Borax
    A. PVA glue such as Elmers
    Explanation
    Borax and PVA glue such as Elmers are common materials used in making a polymer ball, slime, and floam. Borax is a key ingredient in making slime and floam as it acts as a crosslinking agent, creating the polymer network. PVA glue, on the other hand, is the main component of the slime and floam, providing the stretchy and sticky texture. Therefore, both Borax and PVA glue are necessary for creating these materials.

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  • Mar 14, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 12, 2010
    Quiz Created by
    Selva
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