Firework Chemistry and Design Concepts

The video explores the manufacturing and testing of fireworks at a leading UK manufacturer. It covers the composition of fireworks, including the use of flash powder and various chemicals to produce colors. The process of turning gunpowder into pellets to control burn time and create visual patterns is explained. The video also details the testing of fuses for proper ignition and compliance with noise regulations.

What is the cost of each 125 mm aerial Starburst shell?

• £50

• £20

• £40

• £30

What percentage of the fireworks in a 20-minute display are aerial Starburst shells?

• 40%

• 50%

• 60%

• 70%

What is the main component of the basic firework recipe?

• Potassium nitrate

• Charcoal

• Flash powder

• Sulfur

Which chemical is added to make the firework glow red?

• Strontium

• Barium

• Sodium

• Copper

Why is the gunpowder mixture turned into pellets?

• To prolong the burn time

• To reduce the cost

• To increase the explosive power

• To make it easier to handle

What is the purpose of the central and outer rings in the firework?

• To produce sound effects

• To form a specific visual pattern

• To increase the height of the explosion

• To create different colors

How long should the internal fuse burn to ensure correct ignition altitude?

• 5 seconds

• 10 seconds

• 12 seconds

• 15 seconds

What is the expected burn time for the external fuse?

• Within a second

• Within a tenth of a second

• Within a hundredth of a second

• Within a thousandth of a second

What is the maximum noise level allowed for fireworks under European regulations?

• 110 dB

• 120 dB

• 130 dB

• 100 dB

What is the noise level of the firework compared to?

• A pneumatic drill at close range

• A rock concert

• A normal conversation

• A whisper