Forces in Flight
These are the 4 main forces acting during flight.
What are thrust, drag, lift, and weight?
This force pulls objects toward the Earth's center.
What is gravity?
This describes fluids that flow when an external force is applied to them
What are liquids?
This force helps objects float in water by pushing them up.
What is buoyant force?
These energy sources can be replenished naturally in a short period of time.
What are renewable energy sources?
This force opposes thrust and affects an object's speed in a fluid.
What is drag?
These types of forces always come in pairs and act in opposite directions.
What are opposing forces?
This creates the upward force in flying creatures.
What is lift?
This property determines whether an object will float or sink in water.
What is density?
These energy sources take millions of years to form and cannot be easily replenished.
What are non-renewable energy sources?
This force is created by wings or lifting surfaces and opposes gravity.
What is lift?
Give an example of a thrust-producing mechanism.
What is a jet engine?
What is a pedaling a bike?
What is a bird flapping its wings?
This balance keeps a plane in the sky during flight.
What is the balance of forces (lift vs. gravity, thrust vs. drag)?
An object will float in water when its weight is less than this.
What is the buoyant force?
Give an example of a renewable energy source.
What is wind power?
What is hydroelectricity?
What is solar power?
What is biomass?
This force pushes an object forward through the air
What is thrust?
This force pulls objects toward the Earth's center.
This balance keeps a plane in the sky during flight.
What is the balance of forces (lift vs. gravity, thrust vs. drag)?
This concept explains why some objects float while others sink in water.
What is relative density (object's density compared to water's density)?
Give an example of a non-renewable resource?
What is oil?
What is natural gas?
What is coal?
These types of forces always come in pairs and act in opposite directions.
What are opposing forces?
The difference between these two concepts is important in understanding flight.
What are weight and gravity?
This relationship between two forces determines an airplane's speed.
What is the relationship between thrust and drag?
What makes a boat float, even though its heavy.
What is air?
What is an advantage and a disadvantage of non-renewable resources?
What is they are abundant and cheap to produce?
What is they will run out eventually?
What is they are bad for the environment?