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Forces and Motions

QuestionAnswer
Weight The force that pulls the airplane to Earth. Gravity pulls the mass of all objects toward Earth.
Lift Is the amount of force needed to overcome weight.
Drag Is the resistance of the aircraft to move through the air, air resistance.
Thrust The force needed to overcome drag. It is the push or propulsion system in an aircraft.
What are the four forces of flight? Weight, Lift, Drag, Thrust
Name the three non-contact forces. Gravity, Magnetic Field, and Electric Field
Mass The measure of the amount of matter in an object. The mass of an object stays the stays the same regardless of the gravitational pull
Effort Force The force exerted by the user of a simple machine.
Force on the load The force exerted by the simple machine on the load.
Fulcrum The fixed point on which the lever moves.
Lever A bar that tilts around a fixed point to produce a useful motion.
Load The object to be moved by the simple machine.
Pulley A simple machine. It is a wheel with a groove in it.
Simple Machine A device that makes a job easier to do by changing the amount of force, the direction of force, or the distance through which force moves.
Wheel and Axel A simple machine that has a center rod that is attached to a wheel.
Inclined Plane A simple machine with a flat, slanted surface.
Screw A simple machine that is an inclined plane wrapped around a rod or core.
Wedge A simple machine that helps cut or split objects.
Contact Force A push or pull that touches or comes in contact with an object to change motion.
Non-Contact Force A push or pull that does not touch an object to change motion.
Magnetic Attraction The pull of magnetic objects toward a magnet.
Magnetic Repulsion The push of magnetic objects away from a magnet.
Air resistance The friction between an object and particles in the air.
Electromagnet Is produced when electricity flows through a wire. Coiling the wire around an iron bar increases the strenght of the magnetic field.
Created by: hworden
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