Frictional Force And Terminal Velocity Flashcards
Where can drag occur?
> in water
> in air( air resistance)
How is drag minimised?
> streamlining the shape
What happens to drag as speed increases?
It increases
What is the terminal velocity of an object determined by?
> drag in comparison to weight
For a falling object what is the frictionAl forced determined by?
> shape and area
Explain terminal velocity
> when a falling object first sets off, the accelerating force is far greater than the frictional force, so it accelerates
> as the object accelerates the frictional force increases (reducing acceleration) until eventually the object stops accelerating
> it has reached maximum speed or terminal velocity
What are the two forms of friction?
Drag,
> friction between two surfaces in contact
What is the unit for weight?
Newtons (N)
