Wednesday, September 5, 2007

Mechanical tech

MECHANICAL TECHNOLOGY
GRADE 11

SCENARIO 1

In many schools the Science and Technology Departments make their own electromagnets and solenoids.Electromagnets are made of many turns of
insulated copper wireon a small plastic bobbin(like a cotton reel)

SCENARIO 2

During your last visit to the bathroom at school you encountered the following
problem:
While you were tearing off a sheet of paper toweling to dry your hands, the roll
Fell over and became water logged.

SCENARIO 3

School A has a problem : The entrance to the school is not controlled.Learners
experience a huge problem when crossing a nearby busy road before and after
school.Design a perimeter fence that will allow the learners to cross the road at
a safe spot.The fence must also have a control gate for learners, teachers and vehicles.

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