Opposing Forces
What does the word opposing mean when talking about forces?
What is working against each other?
What happens to the speed of the object if thrust is stronger than drag?
What is the object speeds up?
Do all flying objects experience weight? Give a reasoning.
What is yes, all objects have weight and experience the pull of gravity?
Name one traditional tool that shows understanding of forces.
What is a bow and arrow, slingshot, or fishing spear?
A paper airplane is thrown and instead of gliding, it quickly drops to the ground. Which force causes a paper airplane to fall?
weight/gravity
The force that works against lift.
What is weight?
Does drag act in the same direction or opposite direction as movement?
What is opposite direction?
Which feature of a bird creates lift?
What is the shape of the wings?
Which force is created by the feathers (fletching) on an arrow?
Why don’t all objects that are thrown stay in the air?
What is gravity pulls them down and lift is not strong enough?
Name the two opposing forces involved in moving forward through the air.
The cause of drag.
What is air resistance?
What happened to our rotocoptors when we removed the paperclips?
What is fell slower to the ground due to reduced weight?
How does a slingshot use forces to move an object?
What is stretching creates thrust when released?
What does altitude describe?
What is how high an object is above the ground?
Name the two opposing forces that affect staying in the air.
What are lift and weight?
The part of an airplane that creates thrust.
What is the engine?
Why does a heavier object need more lift to stay in the air?
What is gravity pulls on it more strongly?
How does a fishing spear overcome drag in water?
What is its narrow, smooth shape helps reduce resistance?
What forces help an object fly straight and level?
What are balanced lift, weight, thrust, and drag?
Why must lift be greater than weight for an object to stay in the air?
What is because lift must overcome gravity pulling the object down?
Would drag be stronger on a smooth object or a rough object?
What is a rough object?
Which special feature of a bird reduces its weight?
What are hollow bones?
How does the weight of a flying object (arrow, stone, spear) affect how far it travels?
What is heavier objects fall faster, causing them to not travel as far as lighter objects?
How can forces change the path of a flying object?
What is they can make it speed up, slow down, rise, fall, or change direction?