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3 cards from this section. Quick, good the night before a test.
What is drag force?
Think about how air or water pushes against an object.
State one reason why lowering the drag coefficient is important.
Consider how resistance affects energy use.
What is the relation between drag force and fuel consumption?
Consider how cars function against air resistance.
True or False: The drag coefficient has improved from 0.8 to 0.15 in the last 120 years.
Think about improvements in automotive engineering.
A vehicle experiences a drag force of 100 N at a speed of 30 m/s with a drag coefficient of 0.3. If the speed doubles to 60 m/s, calculate the new drag force.
Use the relationship between speed and drag force.
Discuss the historical changes in vehicle designs that influenced fuel efficiency and their unexpected impacts.
Reflect on the balance between efficiency and practicality.
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