STS 2023 - QUIZ 2 FINALS

The following are improved properties in electronics according to the examples of nanotechnology, which among them is not included?

• durability

• reactivity

• conductivity

• strength

The buildup of plaque in arteries

Researchers have developed a nano fabric "paper towel" woven from tiny wires of potassium manganese oxide that can absorb 15 times its weight in oil for cleanup applications.

• True

• False

• Maybe

These were used for enabling gene transformation in plant and animal cells

Aside from zinc oxide, this nanoscale compound has been used for years in sunscreen to provide protection from the sun while appearing invisible on the skin.

This is not true about nanoengineered materials in automotive products

• tires with lower rolling resistance

• high-efficiency and low-cost

  sensors and electronics

• fuel additives for clearer exhaust

• thin-film smart solar panels

Which among the following is not true about clear nanoscale films?

• water repellent

• scratch-resistant

• antireflective

• thermal conductive

Due to their small size, nanomaterials have a large surface area-to-volume ratio, which can lead to increased _________, _______, and ________.

• reactivity, strength, durability

• durability, strength, conductivity

• conductivity, strength, reactivity

• reactivity, conductivity, durability

The US agency that handles nanotechnology in their country

What type of chemical properties is changed in nanotechnology?