Understanding Aerodynamics

What is the primary benefit of an aerodynamic car design?

• Higher cost

• Better fuel economy

• More passenger space

• Increased weight

What is the drag coefficient (Cd) used to measure?

• The weight of a car

• The speed of a car

• The color of a car

• The force of air resistance on an object

Which shape is considered the most aerodynamic in nature?

• Square

• Triangle

• Teardrop

• Circle

What is the effect of drag on a moving car?

• It increases the car's speed

• It decreases the car's speed

• It has no effect on the car

• It changes the car's color

What is the purpose of a spoiler on a car?

• To increase the car's weight

• To improve the car's aerodynamics

• To make the car more expensive

• To change the car's color

What is the typical drag coefficient (Cd) for most modern cars?

• 0.10

• 0.30

• 0.50

• 0.70

Which car model was one of the first to be designed with aerodynamics in mind?

• Ford Model T

• Chrysler Airflow

• Honda Civic

• Toyota Prius

What tool is used to measure the aerodynamic effectiveness of a car?

• Barometer

• Speedometer

• Wind tunnel

• Thermometer

What is the effect of reducing a car's drag coefficient by 0.01?

• Increases the car's weight

• Decreases the car's speed

• Decreases fuel economy by 0.2 miles per gallon

• Increases fuel economy by 0.2 miles per gallon

What is the primary purpose of downforce in car design?

• To increase the car's weight

• To lift the car off the ground

• To change the car's color

• To press the car towards the ground