Hot Air Balloons

What is the ability or tendency to float in water, air or some other fluid called?

• Buoyancy

• Density

• Archimedes Principle

• Rate of Decent

What is the mass per unit volume of a subject called?

• Buoyancy

• Archimedes Principle

• Density

• Force

What is waters density in g/mL?

• 1000

• 100

• 10

• 1

If an object is less dense than water will it sink or float

• sink

• float

When the air inside a hot air balloon get hotter. does it become more or less dense than the air outside the ballon causing it to rise?

• less

• more

The actual fabric that makes up a hot air balloon and holds the hot air is called what?

• Burner

• Envelope

• Basket

• Container

What gas is most commonly used in hot air balloons?

• Propane

• Unleaded

• Kerosene

• Methane

What natural occurrence guides a hot air balloons direction?

• Rain

• Thunder

• Sun

• Wind

In what year did the first around the world hot air balloon fight take place?

• 1999

• 1989

• 1979

• 1969

On a scale of 1 to 5 with 5 being the best, how would you rate your knowledge of hot air balloons from the lesson in aerospace engineering?

• 1

• 2

• 3

• 4

• 5