Understanding Fireworks

Where were fireworks first invented?

• Egypt

• Italy

• China

• India

What is the primary role of potassium nitrate in fireworks?

• Binder

• Colorant

• Fuel

• Oxidant

Which of the following is a secondary fuel in black powder?

• Potassium nitrate

• Sulfur

• Charcoal

• Aluminum

What is the result of the exothermic reaction in fireworks?

• Color change

• Heat and gas release

• Sound production

• Cooling effect

What is the purpose of the fuse in a firecracker?

• To create sound

• To increase the explosion size

• To provide a time delay before detonation

• To add color

What is the main function of the shell in a firecracker?

• To create sound

• To contain the explosive mixture

• To act as a fuse

• To provide color

Which metal is commonly used to create a blue color in fireworks?

• Aluminum

• Barium

• Strontium

• Copper

What is the role of a polymer in the composition of fireworks?

• To act as a fuel and binder

• To increase the explosion

• To provide color

• To reduce smoke

Which element is used to produce a red color in fireworks?

• Strontium

• Magnesium

• Copper

• Barium

What happens to electrons when they absorb energy in fireworks?

• They become neutral

• They move to a higher energy level

• They change color

• They emit sound