User Manual
D
id your Torque Twister™ travel faster and farther on a smooth, at surface or a
rough, bumpy surface? Vehicles usually have a harder time moving on rough terrain.
That’s because there is more friction holding them back from moving forward.
#4: FRICTION IS A STICKY SUBJECT
FRICTION IS WHAT KEEPS US FROM SLIPPING AND FALLING
ALL OVER THE PLACE. IT IS A FORCE THAT HOLDS BACK THE
MOVEMENT OF A SLIDING OBJECT.
DISTANCE TRAVELED (INCHES)
TEST LOG
SPEED LAB!
W
ant to see friction in action? Try this!
A
dd rubber bands around each of the
4
wheels of your Torque Twister™
to increase the traction the vehicle has with the ground. TRACTION is the
ability of a car tire to grip the surface below it. Engineers look for ways to
increase traction so a car can grip the road to turn faster or safely travel
over rough surfaces. Experiment with the steering front wheels on your
Torque Twister™ to see how turning can change a car's traction.
BONUS CHALLENGE!
1
2
3
Turn the crank on your Torque Twister™
5
times. Launch it on
your kitchen oor or other smooth, at surface. Then measure
the distance it has traveled using a ruler or measuring tape.
Record the distance in the Test Log section.
Now turn the crank on your Torque Twister™
5
times and launch the vehicle
on grass, gravel, carpet, or other rough terrain. Measure the distance the
vehicle traveled and record it in the Test Log.
Compare the dierence in distance to see how friction aects a
vehicle’s movement.
TYPE OF SURFACE
SMOOTH
AND FLAT
ROUGH
AND BUMPY
Note: Not for
use with some
rubber bands.
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