Projectile Motion and Fluid Mechanics Flashcards
Define Air Resistance
The force acting to oppose the motion of the body through air
Define Drag
The force acting to oppose the motion of the body through a fluid
What are the 5 factors that effect Air Resistance and Drag?
Velocity, Mass, Frontal Cross-sectional area, Streamlining/shape and Surface characteristics
How does Velocity impact Air Resistance and Drag?
The greater the velocity, the greater the air resistance or drag
How does Mass impact Air Resistance and Drag?
Bodies with smaller mass slow down quickly due to fluid friction
How does Frontal cross-sectional area impact Air Resistance and Drag?
The smaller the area is, the less fluid friction acts
How does Streamlining and Shape impact Air Resistance and Drag?
Fluid friction is minimised by using the optimal shape or position; this reduces turbulence and smoothes the air or water around the body
How does Surface characteristics impact Air Resistance and Drag?
Smooth surfaces create less air resistance or drag than rough surfaces
Define a Projectile
A body moving within a fluid, not in contact with the ground. Fluids include ai and water
What are the 3 release factors affecting the horizontal distance Projectile Motion?
Height of release, Speed of release and Angle of release
How does Height of release impact a projectile before landing?
The higher the release height from the landing height, the further the projectile will travel horizontally
How does Speed of release impact a projectile before landing?
The greater the speed of release, the further the horizontal distance travelled
How does Angle of release impact a projectile before landing?
The optimal release angle is 45˚ if the height release is the same as the landing height
