Science of Speed

What does the science of aerodynamics study?

• the weight of objects

• the speed of flight of objects

• the movement of air

• the sound of air

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NGSS.MS-ESS2-5

What are three key aerodynamic rules or principles?

• drag, height, acceleration

• drag, downforce, drafting

• acceleration, downforce, motion

• acceleration, height, motion

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What word describes a force that slows an object down when air pushes against it?

• drag

• drafting

• downforce

• deceleration

What aerodynamics force is used to create both lift and downforce?

• air speed

• air pressure

• Both A and B

• Neither A or B

Tags

NGSS.MS-PS2-1

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A race car is aerodynamically balanced when there is a balanced force on :

• the front and back wheels

• the spoiler and the roof

• the splitter and the rear bumper

• none of the above

Aerodynamic balance is complicated, which makes it impossible for engineers to use it to improve a race car's performance.

• true

• false

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The goal of adaptations to NASCAR race cars is

• to prevent race cars from flipping over and lifting

• to provide more down force to improve tire traction

• to force high pressure air over the car to make sure it sticks to the track

• to create more contact between tires and the track

• all of the above

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Why is the science of aerodynamics important to racing?

• Aerodynamics helps improve the safety of cars, keeping them on the track

• aerodynamics enhances the speed of the race cars, helping drivers zoom past the competition

• Aerodynamics helps improve the performance of cars, keeping them running smoothly and consistently

• All of the above

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

Downforce is the opposite of lift.

• true

• false

How did the index card affect drag of most of the cars when adding it to the back of the car in the first experiment?

• It increased drag and slowed the car down.

• It increased drag and sped the car up.

• It decreased drag and slowed the car down.