Hot Air Balloons

What is the principle behind the physics of hot air balloons?

• Convection

• Gravity

• Inertia

• Buoyancy

How does the construction of a hot air balloon differ from other types of balloons?

• Hot air balloons are filled with water, while other types of balloons are filled with air.

• Hot air balloons are made of rubber, while other types of balloons are made of nylon.

• Hot air balloons use hot air to achieve buoyancy, while other types of balloons use lighter-than-air gases like helium.

• Hot air balloons use cold air to achieve buoyancy, while other types of balloons use lighter-than-air gases like helium.

What are the main components of a hot air balloon?

• envelope, burner, basket, fuel system, propeller

• envelope, burner, basket, gas tank

• envelope, burner, basket, fuel system

• envelope, burner, basket, wind turbine

What is the envelope of a hot air balloon made of?

• plastic

• nylon or polyester fabric

• paper

• cotton fabric

How is the hot air generated in a hot air balloon?

• By filling the balloon with hot air from a heater.

• By using a fan to blow hot air into the balloon.

• By using a burner to heat the air inside the balloon's envelope.

• By capturing the heat from the sun to fill the balloon with hot air.

What is the purpose of the burner in a hot air balloon?

• To cool down the air inside the balloon and make it descend.

• To provide light for the passengers inside the balloon.

• To create a decorative effect for the balloon.

• To heat the air inside the balloon and make it rise.

What are the safety measures that should be taken before flying in a hot air balloon?

• Not ensuring balloon is in good condition

• Checking weather conditions, ensuring balloon is in good condition, wearing appropriate clothing and footwear, listening to pilot's instructions, being aware of emergency procedures

• Not checking weather conditions

• Wearing inappropriate clothing and footwear

What are the safety precautions during the flight in a hot air balloon?

• Checking weather conditions, ensuring proper equipment and maintenance, wearing appropriate clothing and footwear, following the pilot's instructions, avoiding sudden movements, and being aware of emergency procedures.

• Wearing inappropriate clothing and footwear

• Neglecting equipment and maintenance

• Not checking weather conditions and flying in any weather

What are the emergency procedures in case of an accident or unexpected situation in a hot air balloon?

• Ignore the pilot's instructions and do whatever you want

• Jump out of the balloon immediately

• Start taking selfies and posting on social media

• Maintain calm, follow pilot's instructions, assume brace position, stay inside basket until instructed, follow additional instructions

What are the factors that can affect the flight of a hot air balloon?

• Wind speed and direction, temperature, altitude, weight, and amount of hot air

• Pilot's experience, brand of the balloon, distance traveled

• Time of day, type of fuel used, shape of the balloon

• Color of the balloon, size of the basket, number of passengers