Teacher: You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Optical mice use an LED and a camera to rapidly
capture images of the surface beneath the mouse.
The infomation from the camera is analyzed by a
DSP (Digital Signal Processor) and used to detect
imperfections in the underlying surface and
determine motion. Some materials, such as glass,
mirrors or other very shiny, uniform surfaces
interfere with the ability of the DSP to
accurately analyze the surface beneath the mouse.

Since glass is transparent and very uniform, the
mouse is unable to pick up enough imperfections in
the underlying surface to determine motion.
Mirrored surfaces are also a problem, since they
constantly reflect back the same image, causing
the DSP not to recognize motion properly. When the
system is unable to see surface changes associated
with movement, the mouse will not work properly.
Solution: why doesn't an optical mouse work on a glass
table?
Reason: The passage talks about the glass and mirror surfaces beneath the optical mice and how the mouse is unable to pick up enough imperfections in the underlying surface to determine motion. The last line of the passage explains why the mouse will not work properly on these surfaces. Thus it is a positive example.

Now, solve this instance: Let me break it down-
Engine- 3 liter V10. Approximately 900+ hp, 19,000 rpm. The engine weighs about 200 lbs. It spins so fast that metal valve springs can't keep, the springs are pneumatic.
Brakes- The better your brakes, the later you can brake and thus you can spend more time going fast. These are carbon fiber and take 3 months to make. They heat up to around 1500 F in use and can be seen glowing. The wheels are limited to 13 inches in order to limit braking capability. As they are, the driver experiences 4 G's of decelerating load under heavy braking. An average person would black out in an F1 car.
Aerodynamics- Surprisingly, drag is not the critical factor, downforce is. These cars have very high coefficients of drag, due to the open wheels and spoilers. The downforce is created by aero devices which are basically inverted aeroplane wings, which push the car to the ground under speed. It is because of the dependence on these devices that F1 cars have a difficult time passing, once the cars enter the dirty air behind another racer, downforce drops dramatically and so does the car's ability to corner quickly.
Traction control- the cars generate so much power that the throttle is computer controlled to keep the tires from spinning. The governing body (the FIA) wants to make this illegal but right now it is not feasible because it is merely software in the engine management systems, and it is not feasible to decompile these systems to find illegal code.
Transmisison- The cars utilize computer controlled sequential manual transmissions. The computers manage the throttle and clutch to pull off perfect shifts in one tenth of a second. All the driver does is pull a lever. The clutch is only used from a standstill and is engaged from a lever on the steering wheel.
What doesn't make the cars fast-
Tires- The tires are grooved to limit traction. If the drivers were allowed to run slicks, the traction and G loading would be so high that drivers would black out and possibly crash. Starting in 2005, they also must last the entire race.
Wheels- Size limited to prevent the installation of overlarge brakes which would also push the drivers beyond the limits of human physiology
Brakes- As stated earlier, size limited. Also, no ABS at all (outlawed in 1994).
Student:
Formula1 car