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If so instructed by your
teacher, print out a worksheet page for these problems.
Guide to Aerodynamics
Cruising Aircraft and Balanced Forces Activity
Open the slides called
Airplane Cruise-Balanced Forces,
Forces on an Airplane, and Aircraft
Motion-Unbalanced Forces (with text). Read the explanations on the four
forces on an airplane and what happens when the forces are balanced or unbalanced.
- Define force.
- What are the four
forces acting on an airplane?
- How do each of
the four forces act on an airplane in flight? (Which direction does
each force push or pull on the airplane in flight?)
- Define balanced
- In terms of the
four forces acting on an airplane, what needs to happen so the forces
are balanced? What do we call it when all four forces are balanced on
- You are traveling
on an airplane and the pilot announces on the intercom that you have
reached your cruising altitude of 32,000 feet. Explain what the pilot
is telling you. (Include what is happening with the four forces on the
- During a flight
when we are cruising at a specific altitude, the four forces are balanced.
At which points during a flight are the forces unbalanced?
- Define Newton's
First Law of Motion.
- In your own words,
explain how Newton's First Law of Motion explains the motion of a cruising
- What are some ways
the forces on an airplane can become unbalanced? (Name at least three).