Vocabulary 1
opposes motion in a fluid
Drag
upward force = the volume of water displaced
Archimedes Principle
acted upon by the force of gravity only
Free Fall
a force that opposes motion
Friction
caused by the weight of atmospheric gases
Atmospheric Pressure
the metric unit of measure for pressure
Pascal
a push or a pull
Force
upward force on a wing
Lift
a change in position compared to a reference point
Motion
rate of movement
Speed
force exerted on a given area
Pressure
forward force produced by engine
Thrust
material that flows and takes the shape of a container
Fluid
rate at which velocity changes
Acceleration
when an object falls at a constant velocity
Terminal Velocity
compactness of molecules, mass divided by volume
Density
speed in a particular direction
Velocity
resistance to any change in motion
Inertia
curved path of an object when thrown
Projectile Motion
change in fluid is transmitted to all parts of the fluid
Pascal’s Principle
the result of combining all forces
Net force
the metric unit of force
Newton
as air speed increases, air pressure decreases
Bernoulli’s Principle
property of mass and velocity
Momentum
upward force fluids exert on other objects
Buoyant Force