User Manual

s you can see, the distance each of these

vehicles traveled is dierent

from each other. One reason is because they have dierent shapes. The

shape of a vehicle aects its AERODYNAMICS, which is the study of

how air aects moving objects. When a vehicle wants to move forward,

it has to ght against air. A big school bus is not very aerodynamic

because the front of it is at. It’s not designed to ght against air very

well. But a race car’s shape is pointed and curved, so it can slice through

air, forcing the air up and over it! This design lets a race car move faster

and farther than a school bus.

hich of these two vehicles do you think is more AERODYNAMIC?

#3: DUAL ENGINE DYNAMICS

EVER WONDER WHY SO MANY REAL RACE CARS LOOK SO SLIM

AND SLEEK? IT’S BECAUSE THEY’RE BUILT FOR SPEED!

DISTANCE TRAVELED (INCHES)

TEST LOG

TYPE OF VEHICLE

et’s see how the shape of a Speed Winders™ vehicle aects how far it can travel.

DUAL ENGINE

IN-LINE DRAGSTER

SPEED LAB!

TORQUE

TWISTER™

TWISTED

CYCLE™

Rotate the Torque Twister™ crank

times. Then launch it, measure the

distance traveled with a ruler or measuring tape, and record the

measurement on the table opposite.

Now rotate the Twisted Cycle™ crank

times. Launch it,

measure the distance traveled, and record it record it in

the Test Log section.

Combine the vehicles together to create a dual engine in-line dragster.

Then rotate the crank

times, launch it, and measure the distance

traveled. Record this last measurement to complete the Test Log.

Compare the

distances to see whether they are the same or not.

8 9