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

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

The steel makes the structure lighter and more flexible.

The steel prevents the concrete from ever cracking.

The concrete protects the steel from conducting electricity

None

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

Styrene and butadiene monomers

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

Yttrium barium copper oxide

Polyester resin and glass fibers

None

What is the defining characteristic of a superconductor when it is cooled below its critical temperature?

It becomes a perfect insulator.

It exhibits zero electrical resistance

It converts electrical energy into heat energy with 100% efficiency.

It develops extremely high electrical resistance.

None

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

A superconductor

A natural polymer

A copolymer

A ceramic composite

None

Which of the following pairs correctly matches a natural polymer with its corresponding monomer?

Protein and Glucose

Natural rubber and Amino acid

Carbohydrate (Starch) and Isoprene

Protein and Amino acid

None

Why are carbon nanotubes considered a superior material for touch screen devices compared to the traditionally used tin oxide?

They are more transparent but less conductive.

They are heavier and more rigid, making the screen less likely to break

They are able to store more electrical charge, increasing battery life.

They have better mechanical properties and sensitivity at a lower cost.

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

It biodegrades too quickly, releasing nutrients that upset ecosystems.

None

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

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

They add beneficial carbon minerals to the water.

They chemically neutralize all contaminants in the water.

They increase the water pressure to speed up the filtration process

None

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

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

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

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

They vibrate at high frequencies to transmit data acoustically.

None

10.

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

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.

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

None

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