Gears 2026 | Study Guide,
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Rationales
Included
, force A push or a pull
mechanisms can change: speed
direction
distance of output
Mechanical Advantage (MA) Ratio of the output force exerted by a machine to the input force applied to the
machine.
machine A device that changes a force
6 simple machines lever
pulley
screw
wheel and axle
inclined plane
wedge
Efficiency The percentage of the input work that is converted to output work
Reasons for inefficiency in machines: air resistance
parts twisting or bending
friction
heat
sound
lever A rigid bar that is free to move around a fixed point
lever
pulley
screw
wheel and axle