Kuiz Sains Tambahan Tingkatan 5 Bab 5 Set 1

SELAMAT DATANG Kuiz Sains Tambahan Tingkatan 5 Bab 5 Set 1

Kimia Bahan (English)

KUIZ INI MENGANDUNGI 10 SOALAN

Styrene-butadiene rubber is used to make vehicle tires. Based on its name and the provided text, what type of material is it?

A copolymer

A superconductor

A ceramic composite

A natural polymer

None

The development of nanoscience and nanotechnology, which produced materials like carbon nanotubes, involves working at what scale?

The microscopic scale (1-100 micrometers)

The macroscopic scale (greater than 1 millimeter)

The nanoscale (1-100 nanometers)

The atomic scale (less than 1 nanometer)

None

Reinforced concrete, used in bridges and skyscrapers, is a composite material made of concrete and steel rods. Why is this combination superior to concrete alone?

The steel prevents the concrete from ever cracking.

The concrete protects the steel from conducting electricity

The steel provides tensile strength, allowing the structure to support larger loads and resist forces like vibration.

The steel makes the structure lighter and more flexible.

None

What is the fundamental difference between a polymer and a copolymer?

A polymer is made of natural monomers, while a copolymer is made of synthetic monomers.

A polymer consists of a single repeating monomer unit, while a copolymer is formed from more than one type of monomer.

A polymer is formed through addition polymerization, while a copolymer is formed through condensation polymerization.

A polymer is a long-chain molecule, whereas a copolymer is a short-chain molecule.

None

Nylon, commonly used for ropes, carpets, and clothing, is a synthetic copolymer. What does this imply about its monomer composition?

It is made from repeating units of the natural monomer isoprene.

It is made from a single, complex monomer called ‘nylonene’

It is formed from two different types of monomers, hexanedioic acid and hexamethylene diamine.

It is a modified version of the natural polymer, protein.

None

Fiberglass is a composite material valued for being strong, lightweight, and corrosion-resistant. What are its two primary components?

Silver chloride and regular glass

Carbon atoms and polymer chains

Glass fibers and polyester resin (a type of plastic)

Steel rods and concrete

None

Carbon nanotubes are utilized in advanced water filters. What function do they perform in this application?

They chemically neutralize all contaminants in the water.

They add beneficial carbon minerals to the water.

They increase the water pressure to speed up the filtration process

They act as a membrane to physically block microorganisms and heavy metals.

None

How do fiber optic cables transmit information, making them advantageous over traditional copper wires?

They transmit data as signals of light, allowing for higher speed and capacity

They use magnetic pulses, which are not affected by electrical interference.

They vibrate at high frequencies to transmit data acoustically.

They use superconductive materials to send electrical signals with zero loss.

None

The text identifies a major environmental issue with the disposal of advanced materials in electronic products. What is a primary reason that electronic waste (e-waste) is so harmful?

It is highly radioactive and requires specialized containment.

It is often disposed of through open burning, which releases toxic gases.

It biodegrades too quickly, releasing nutrients that upset ecosystems.

It absorbs a large amount of water, leading to soil dehydration.

None

10.

Photochromic glass, which darkens in sunlight, is created by adding which substances to regular glass?

Silver chloride (or silver bromide) and copper(II) chloride

Polyester resin and glass fibers

Styrene and butadiene monomers

Yttrium barium copper oxide

None

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