Unit 2 Review

Front

How do birds generate thrust and lift?

Back

Birds generate thrust and lift by flapping their wings.

Front

How does a hot air balloon control its direction in flight?

Back

A hot air balloon controls its direction by changing altitude to catch different wind currents.

Front

What did Leonardo invent after studying birds?

Back

A flying machine.

Front

True or False? The buoyant force on a submerged object is equal to the weight of the fluid that is displaced by the object.

Back

True.

Front

Which was Leonardo da Vinci’s greatest contribution to modern aviation?

Back

He described flight similar to that of birds.

Front

What is thrust in the context of flight?

Back

Thrust is the force that propels an object forward, generated by engines or wings.

Front

What is lift in aviation?

Back

Lift is the upward force that counteracts gravity, allowing an aircraft to rise.

Front

What principle explains why a hot air balloon rises?

Back

A hot air balloon rises due to the buoyant force, which is greater than the weight of the balloon.

Front

What is the role of wing shape in flight?

Back

The shape of wings affects lift; airfoil shapes create lower pressure above the wing and higher pressure below.

Front

What is the significance of Leonardo da Vinci's sketches of flying machines?

Back

They laid the groundwork for future aviation designs and concepts.