Silica extracted from rice husks used in new tires

The video explains how tire pressure affects energy loss through hysteresis and how this can be mitigated by using materials with strong chemical bonds, such as silica. Silica, which can be sourced from rice husks, is used by companies like Pirelli to enhance tire efficiency. The process involves burning rice husks to obtain silica, which is then mixed into tires to reduce kinetic energy wasted as heat, thus improving energy efficiency and sustainability.

What is the term used to describe the energy loss when kinetic energy is converted into heat in tires?

• Compression

• Friction

• Hysteresis

• Inertia

Which material is mentioned as having strong chemical bonds that can reduce energy loss in tires?

• Steel

• Rubber

• Silica

• Carbon

From what agricultural byproduct is silica obtained, as mentioned in the video?

• Corn husks

• Wheat straw

• Rice husks

• Soybean pods

Which company is noted for using rice husk ash to produce silica for tires?

• Goodyear

• Pirelli

• Bridgestone

• Michelin

How much silica can be obtained from one ton of rice, according to the video?

• 50 kilograms

• 40 kilograms

• 30 kilograms

• 20 kilograms