Sample
Summaries after sample
, Analyse gear systems System diagrams
• Graphical gear representations show direction • Mechanical systems consist of input, process
and speed of rotation. and output.
• Gear combinations work together to solve • Eg. Bicycle gear system:
problems efficiently.
o Input: the riders force on the pedals.
• Changing gear size, number, or type, changes
o Process: chain and gears working together.
the system’s output.
o Output: wheel rotates, moving the bicycle
• Adjustments can control speed, torque, force
direction, or motion direction. forward.
• Mechanical systems are shown using system
diagrams – flow diagrams with input, process,
and output within a system.
U7: Analyse
Sample gear systems
Summaries after sample
Analyse a bicycle gear system Mechanical systems produce a specific output
• Bicycle’s forward motion is produced by: • Mechanical systems (gear systems, cranks and
o Cranks and pedals. cams), produces specific outputs as:
o Chain and gears (front chain wheels, ear freewheel, and rear derailleur). • Increased speed.
• These parts work together to move the bicycle efficiently on hills or flat roads. • Increased torque or turning force.
• Gear rations control how easily or powerfully the bike moves: • Change in direction of turning force (as in bevel
o Upshift (higher gear)- more torque, harder pedalling, greater force needed. gears).
o Downshift ((lower gear) – less torque, easier pedalling, but more pedal turns • Change of circular motion into reciprocal motion
for the same distance.
GR8 TECH T3-M5 Mind Map Spot On Copyright © www.summariessa.co.za (DO NOT COPY)
, Sample
Summaries after sample
Summaries after sample
, Analyse gear systems System diagrams
• Graphical gear representations show direction • Mechanical systems consist of input, process
and speed of rotation. and output.
• Gear combinations work together to solve • Eg. Bicycle gear system:
problems efficiently.
o Input: the riders force on the pedals.
• Changing gear size, number, or type, changes
o Process: chain and gears working together.
the system’s output.
o Output: wheel rotates, moving the bicycle
• Adjustments can control speed, torque, force
direction, or motion direction. forward.
• Mechanical systems are shown using system
diagrams – flow diagrams with input, process,
and output within a system.
U7: Analyse
Sample gear systems
Summaries after sample
Analyse a bicycle gear system Mechanical systems produce a specific output
• Bicycle’s forward motion is produced by: • Mechanical systems (gear systems, cranks and
o Cranks and pedals. cams), produces specific outputs as:
o Chain and gears (front chain wheels, ear freewheel, and rear derailleur). • Increased speed.
• These parts work together to move the bicycle efficiently on hills or flat roads. • Increased torque or turning force.
• Gear rations control how easily or powerfully the bike moves: • Change in direction of turning force (as in bevel
o Upshift (higher gear)- more torque, harder pedalling, greater force needed. gears).
o Downshift ((lower gear) – less torque, easier pedalling, but more pedal turns • Change of circular motion into reciprocal motion
for the same distance.
GR8 TECH T3-M5 Mind Map Spot On Copyright © www.summariessa.co.za (DO NOT COPY)
, Sample
Summaries after sample
