Smart And Modern Materials

Question 1

Thermochromic

Answer 1

Changes colour based on temperature. An example of a thermochromic product is “stick on thermometers” that change colour based on body temperature.

Question 2

Photochromic

Answer 2

Changes colour based on the intensity of light. An example of a photochromic product is “Reactolite” lenses that darken in intense light.

Question 3

Electrochromic

Answer 3

Changes colour based the amount of electricity applied. An example of an electrochromic product is “dim-able windows” that can be darkened when a current flows.

Question 4

Phosphorescent

Answer 4

A material that absorbs light and then remits it when it gets dark. An example of a phosphorescent product is “glow-in-the-dark clock hands”.

Question 5

Smart Material

Answer 5

A material that responds to a stimulus.

Question 6

Stimulus

Answer 6

A thing or event that causes a change or reaction.