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

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

They vibrate at high frequencies to transmit data acoustically.

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 use superconductive materials to send electrical signals with zero loss.

None

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

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

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

They are more transparent but less conductive.

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

None

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

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

It becomes a perfect insulator.

It develops extremely high electrical resistance.

It exhibits zero electrical resistance

None

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

Yttrium barium copper oxide

Polyester resin and glass fibers

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

Styrene and butadiene monomers

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 copolymer

A ceramic composite

A natural polymer

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

Steel rods and concrete

Glass fibers and polyester resin (a type of plastic)

Carbon atoms and polymer chains

None

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

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

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

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

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

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 biodegrades too quickly, releasing nutrients that upset ecosystems.

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

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

None

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

Protein and Amino acid

Carbohydrate (Starch) and Isoprene

Protein and Glucose

Natural rubber and Amino acid

None

10.

Which of these is an example of a synthetic polymer?

Cellulose

Natural rubber

Polyvinyl chloride (PVC)

Protein

None

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