Vocabulary
What is mass?
MAss is the amount in an object
What is lift?
Lift is the force that lifts the plane off the ground.
True or False.
Air has no weight
Whats a flying thing that can help you travel?
Airplane, Hot air balloon, hellicopter, Jet
What do you call an aircraft that is lighter than air?
Lighter-than-air aircraft
What is the word for an object that float on air/water?
Buoyancy
What is drag?
Drag is the force that slows movement through air.
True or False.
Trust is the forward force.
true.
Name two things that fly.
Hot air ballon,air plane, birds ect
What powers a hot
air balloon
fire
What is buoyancy?
Buoyancy Is the upwards force produced by liquid or gas that surrounds an object
Name two things that Thrust does.
1:Moves the aircraft forward.
2:Acts opposite to thrust.-M
True or false
Weight is the downward pull of gravity.
true
Why can birds fly but people cant?
Bird wings are hollow our bones are solid.
What do you call an aircraft that is heavier than air?
Heavier than air aircraft
What is the word for the forward force on an aircraft?
Thrust.
What are the four forces affecting flight
Thrust drag weight lift
True or false
Lift is the upward force.
true.
How many times do bees flap their wings a second?
267
What do you call an aircraft that is heavier than air?
Heavier than air aircraft
What is gravity?
Is a force of attraction between all objects that has mass.
What is weight?
Weight is the downward force on an aircraft.
What is thrust?
Thrust is the forward force from engines, propellers or wings.
What is the technical name of maple helicopters
samaras
true or false you can direct where a hot air balloon goes
false