Science 8: Unit D – Mechanical Systems
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Transcript Science 8: Unit D – Mechanical Systems
Science 8: Unit D –
Mechanical Systems
Topic 6: Combining Systems
Subsystem
Most machines today are combinations of
many different simple machines working
together.
Most complex machines such as an
automobile have multiple separate, but
related functions. A car accelerates, and
slows down through different subsystems.
Subsystem – the entire set of machines
that are responsible for a function in a
complex machine.
Example
One of the functions of a car is braking.
So the car has a braking subsystem
This subsystem consists of the brake
pedal, piston, master cylinder, brake fluid,
wheel cylinder, brake pads, and brake
discs.
If one of these devices were to
malfunction, braking power would drop or
fail completely.