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PE PAPER 2 > FLUID MECHANICS > Flashcards

FLUID MECHANICS Flashcards

1
Q

DEFINE SURFACE DRAG

A
  • relates to friction between the surface of an object and the fluid environment
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2
Q

DEFINE FORM DRAG

A
  • relates to the impact of the fluid environment on a object
  • relates to streamlining
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3
Q

DEFINE STREAMLINING

A
  • involves shaping a body so it can move as effectively and quickly through fluid as possible
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4
Q

HOW CAN THE VELOCITY OF A MOVING BODY INCREASE/DECREASE THE DRAG

A
  • The graeter the velocity of a body through a fluid, the greater the drag force
  • streamlining can reduce the effects of drag
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5
Q

HOW CAN THE CROSS SECTIONAL AREA OF A MOVING BODY INCREASE/DECREASE THE DRAG

A
  • a large cross sectional area of a moving body increases drag.
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6
Q

HOW DOES THE SHAPE AND SURFACE OF A MOVING BODY INFLUNCE DRAG

A
  • a more streamlined, aerodynamic shape reduces drag

- cyclists where tight fitted clothing to reduce drag and get those marginal gains

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PE PAPER 2 (9 decks)

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