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Unit 1.3.b - linear motion, angular motion, fluid mechanics and projectile motion > fluid mechanics > Flashcards

fluid mechanics Flashcards

1
Q

What is air resistance

A

Force that opposes the direction of motion of a body through air

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2
Q

What is drag

A

Force that opposes the direction of motion of a body through water

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3
Q

What is streamlining

A

The creation of smooth air flow around on aerodynamic shape

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4
Q

What is aerofoil

A

A streamlined shape with a curved upper surface and flat lower surface designed to give an additional lift force to a body

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5
Q

What are the factors that affect drag

A
  • Velocity=The greater the velocity,the greater the air resistance or drag
  • Frontal cross-section=the larger the cross sectional area,the larger the air resistance or drag
  • Streamlining and shape=More streamlined/aerodynamic shape of body in motion,the lower the air resistance or drag
  • Surface characteristics-smoother the surface,the lower the air resistance or drag
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Unit 1.3.b - linear motion, angular motion, fluid mechanics and projectile motion (4 decks)

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