Flame Vortexes Quiz

What is the main phenomenon being explored in the video?

• The effect of air currents on solid objects

• The effect of water currents on air

• The effect of air currents on an open flame

• The effect of air currents on water

Which of the following is NOT listed as necessary equipment for the experiment?

• A barbecue lighter

• A mesh waste paper basket

• A plastic bowl

• A rotating surface

What safety equipment is recommended for the experiment?

• A mask and earplugs

• A helmet and knee pads

• Heat reducing gloves and goggles

• A life jacket and whistle

What is the first step in constructing the rig for the experiment?

• Wrap the pot lid in aluminum foil

• Fill the pie tin with water

• Place the pie tin in the heat-resistant bowl

• Attach the mesh basket to the ceiling

What should you do after lighting the cotton balls on fire?

• Cover the flame with a cloth

• Blow on the flame to make it bigger

• Pour more alcohol on the flame

• Rotate the rig in smooth circles

What causes the flame to stretch and grow taller during the experiment?

• The increase in humidity

• The decrease in temperature

• The spinning motion of the rig

• The addition of more fuel

Why do the flames take on a weaved pattern?

• Due to the color of the flame

• Because of the type of fuel used

• Because of the shape of the basket

• As a result of the rotating air molecules

What happens to the air pressure around the flame as the rig spins?

• It increases

• It decreases

• It remains constant

• It fluctuates randomly

What is the role of cooler air molecules in the flame vortex experiment?

• They cool down the rig

• They create more flames and hot gases

• They prevent the flame from rising

• They extinguish the flame

What should you do after completing the experiment?

• Leave the flame to burn out naturally

• Use the foil-covered pot lid to snuff out the flame

• Pour water over the flame

• Blow on the flame to extinguish it