Area 01
Mechanics
Forces, motion and energy: di rules wey dey behind every machine
Mechanics dey explain why tins dey move, speed up, slow down or stay one place. Na di foundation of almost every machine.
Wetin you go learn
- Wetin be force, and how forces dey combine
- How friction dey help, and how e dey disturb
- How levers, pulleys and ramps dey make work easy
- How energy dey change from one form to anoda
Example experiments
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Roll one cart down ramps wey get different angles, and compare im speed.
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Shift di pivot of one lever and find di smallest force wey fit lift one load.
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Change di surface under one block and see how friction dey change how e move.
Tins wey you fit build
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Ramp wit cart and stopper
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Lever wey fit lift heavy load
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Simple pulley system
Dis examples dey show di kind work wey dey dis area. Di lessons wey dem go publish fit different.
Try one small model
Dis small models dey run right here for your browser, and dem go still work witout internet once di page don load. Na teaching models wey dem simplify, no be di MEKALUMI simulation engine.
Tip: drag di gear for left to turn am wit your hand.
Gear train
Change di number of teeth for each gear. Watch how di speed and di turning force dey change.
- Gear ratio
- 1 : 2
- Output speed
- 15 rpm · 2× slower
- Turning force
- × 2
- Direction
- E dey turn opposite di motor
Wen small gear dey drive big one, di big gear go turn slower, but wit more force. Winches, bicycles and clocks dey use dis idea.
Model: ideal gears wey no get friction and no dey slip. Motor speed: 30 rpm.
Wetin di simulation simplify
- Most times, dem dey treat objects as if dem perfectly rigid: dem no dey dent, crack or wear out.
- Friction and air resistance dey follow simple formulas; di real world no neat like dat.
Every simulation dey simplify reality. To sabi how e dey do am na part of learning engineering.
How e connect to school subjects
Physics, maths (angles and ratios), sports
Connection to oda areas
Mechanics na di base for kinematics, structures and robotics.
E good make you know
Dem talk say Archimedes claim say, if im get lever wey long enough and place to stand, im fit move di Earth.