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2 cards from this section. Quick, good the night before a test.
What is drag?
Think about what slows something down in the air.
Define lift.
Consider forces acting on an airplane.
What does drag do?
Think about what slows objects down.
The drag coefficient is a measure of:
Remember what C_d represents in formulas.
A helicopter rotor blade needs to sustain lift to maintain altitude against gravity. If the weight of the helicopter is 5000 N and the lift force is 5500 N, what will happen?
Compare lift and weight to determine motion.
Describe how altering the shape of a car can influence its drag coefficient and overall fuel efficiency on the highway.
Think about how shapes affect airflow.
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