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What makes hot air balloons float? - Quiz
Contributed by: Leonard
  • 1. How does hot air cause a balloon to rise?
A) It is less dense than cooler air.
B) It is heavier than cool air.
C) It expands in size.
D) It has more pressure.
  • 2. What happens to the air inside the balloon when it is heated?
A) It escapes.
B) It becomes heavier.
C) It contracts.
D) It expands.
  • 3. Which part of the balloon holds the hot air?
A) The burner.
B) The envelope.
C) The flame.
D) The basket.
  • 4. What is the typical flight duration of a hot air balloon?
A) 5 to 10 hours.
B) 1 to 2 hours.
C) 30 minutes.
D) All day.
  • 5. What is the purpose of the vent on top of the hot air balloon?
A) To stabilize the balloon.
B) To increase lift.
C) To release hot air.
D) To let in cool air.
  • 6. Which condition is ideal for hot air ballooning?
A) High humidity.
B) Calm and clear weather.
C) Windy and cloudy weather.
D) Rainy conditions.
  • 7. How is the altitude of a hot air balloon controlled?
A) By adding more gas.
B) By changing the balloon color.
C) By adjusting the temperature of the air.
D) By changing the weight of the basket.
  • 8. At what height do most hot air balloons typically fly?
A) At sea level.
B) Above 10,000 feet.
C) Between 1,000 and 3,000 feet.
D) Under 500 feet.
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