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3.1.5 Mechanical devices
3.1.5 Mechanical devices
Different types of movement
The functions of mechanical devices to produce linear, rotary, reciprocating and oscillating movements.
MATHS & SCIENCE
Visualise and represent 2D and 3D objects including 2D diagrams of mechanisms/mechanical movement.
Changing Magnitude and direction of force
Levers:
first order
second order
third order.
Linkages:
bell cranks
push/pull.
Rotary systems:
CAMs and followers
simple gear trains
pulleys and belts.
MATHS & SCIENCE
The action of forces and how levers and gears transmit and transform the effects of forces.
Arithmetic and numerical computation eg use ratios.
Use angular measures in degrees, visualise and represent 2D and 3D objects including 2D diagrams of mechanisms/ mechanical movement.
Knowledge of the function of mechanical devices to produce different sorts of movement, changing the magnitude and direction of forces.
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