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- 1. Multiple Choice
What does flight mean?
to move along the ground
to move quickly
to move through the air
to move by sea
- 2. Multiple Choice
Who invented the first hot air balloon?
Jean-Pierre Blanchard
the Montgolfier Brothers
the Wright Brothers
Jimmy Doolittle
- 3. Multiple Choice
Besides temperature, how are cold air and hot air DIFFERENT?
Cold air rises up in the sky
Hot air is lighter than cold air
Cold air is lighter than hot air
Hot air stays close to the ground
- 4. Multiple Choice
What helps pilots steer a hot air balloon?
The use the wind currents
They lean from side to side
They use a steering wheel
They turn handlebars
- 5. Multiple Choice
Which kind of day would be best for a hot air balloon ride?
a cloudy day with little wind
a cloudy, windy day
a clear, windy day
a clear day with little wind
- 6. Multiple Choice
What causes the balloon to sink to the ground?
The parachute valve opens and lets the cold air in.
The pilot steers down to the ground.
The parachute valve opens and lets the hot air out.
The pilot fires up the burner.
- 7. Multiple Choice
Where do the pilot and passengers stand?
cockpit
cabin
basket
envelope
- 8. Multiple Choice
What were the first passengers to fly in a hot air balloon?
Cow
Rooster
Duck
Sheep
- 9. Multiple Choice
Is the air full of molecules?
Yes
No
- 10. Multiple Choice
What is the purpose of the parachute valve?
It allows air to move freely in the balloon.
It helps the balloon by storing fuel.
It opens and closes to allow the balloon to descend and ascend.
It is an escape route in case of fire.
- 11. Multiple Choice
A hot air balloon rises because it contains_______.
lift fuel, propane and chilled air
nitrogen and propane
H2-7R3
heated air by propane
- 12. Multiple Choice
How does a hot air balloon change altitude (go up or down)?
By releasing gas or jettisoning ballast overboard
By dropping off a passenger
By adding helium
By adding weight to the basket
- 13. Multiple Choice
The purpose of the fire in a hot air balloon is to heat up the air to _______.
increase the mass
decrease the density
decrease the mass
increase the density
- 14. Multiple Choice
What part of the balloon traps in air?
Basket
Parachute
Steering Wheel
Envelope
- 15. Multiple Choice
Is the cold air outside the balloon more or less dense than the hot air?
More
Less
- 16. Multiple Choice
The hot air balloon is the oldest form of flying technology?
True
False
- 17. Multiple Choice
What does the hot air balloon valve do?
It can make the balloon go higher and faster
It can allow the balloon to descend by releasing some air
It is only for decoration
It is the way to prevent birds from being swallowed by the envelope
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