Physics Girl Vortex Edition Quiz

What was the main question that Diana and Grant explored in the video?

• How to create a hurricane in a lab

• How to use lasers to visualize air flow

• How to make a vortex ring through a square hole

• How to make a smoke grenade

What was the initial prediction about the vortex ring through a square hole?

• It would create a perfect square

• It would form a triangle

• It would not work at all

• It would explode

What shape did the vortex ring take when passing through a square hole?

• A triangle

• A diamond shape

• A four-leaf clover

• A perfect circle

How did the vortex ring behave when a rectangular hole was used?

• It formed a perfect rectangle

• It stopped moving

• It wobbled more pronouncedly

• It moved in a straight line

What is a vortex ring?

• A type of laser beam

• A solid object that spins

• A type of hurricane

• A swirling mass of fluid in a closed shape

What causes a vortex ring to push itself forward?

• Magnetic fields

• Each part of the ring pushing on every other part

• Wind

• Gravity

Why do sharp turns in a vortex ring get ahead of other parts?

• They are closer to the ground

• They have more energy

• They are lighter

• They push on each other more

What tool did the team use to visualize the vortex?

• A camera

• A telescope

• A laser with a diffraction grating

• A microscope

What was the purpose of using a laser and diffraction grating in the experiment?

• To measure the speed of light

• To create a vortex

• To show a cross-section of the vortex

• To heat the air

What additional content is suggested for viewers at the end of the video?

• A documentary on hurricanes

• A cooking tutorial

• A math video on 3Blue1Brown

• A music video