Smart materials

Question 1

What is a smart material?

Answer 1

A material that changes its properties in response to changes in its environment, such as temperature, light or pressure.

Question 2

What are thermochromic pigments?

Answer 2

Pigments that change colour in response to changes in temperature.

Question 3

Give two examples of thermochromic pigment applications.

Answer 3

Baby spoons that change colour when food is too hot

Mood rings and novelty mugs.

Question 4

Why are thermochromic pigments used?

Answer 4

For safety indicators, novelty products, and to improve user interaction by giving visual feedback based on temperature.

Question 5

What is self-cleaning glass?

Answer 5

Glass coated with a special chemical layer that breaks down dirt using UV light and allows rainwater to wash it away easily.

Question 6

Give two applications of self-cleaning glass.

Answer 6

Windows in tall buildings

Greenhouses and conservatories.

Question 7

What are the advantages of using self-cleaning glass?

Answer 7

Reduces the need for manual cleaning, lowers maintenance costs, and improves appearance by keeping surfaces clear.