Representing Terminal Velocity (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Practise the cards
12 cards from this deck
What are the two forces on an object falling through a fluid?
What are the two forces on an object falling through a fluid?
Weight and drag
What causes weight?
What causes weight?
Gravity
What is drag?
What is drag?
Friction between object and fluid particles
Give an example of drag
Give an example of drag
Air resistance
What does air resistance oppose?
What does air resistance oppose?
The force of gravity
What happens to drag as speed increases?
What happens to drag as speed increases?
Drag increases
What is the initial motion of a dropped object?
What is the initial motion of a dropped object?
It accelerates
Why does a dropped object initially accelerate?
Why does a dropped object initially accelerate?
Gravitational force exceeds drag
Direction of initial resultant force?
Direction of initial resultant force?
Downwards
What is the force condition at terminal velocity?
What is the force condition at terminal velocity?
Drag force equals gravitational force
Speed characteristic at terminal velocity?
Speed characteristic at terminal velocity?
Constant speed (maximum speed)
Resultant force at terminal velocity?
Resultant force at terminal velocity?
No resultant force (forces balanced)