IES Gómez-Moreno – Departamento de Tecnología
Mechanisms - Activities
1. Match the type of motion to the correct definition
Movements: rotary, linear, oscillating, reciprocating
Definitions:
• Upwards and downwards movement in a straight line:
• Backwards and forwards motion in a fixed arc:
• Movement in a straight line:
• Rotation of things in circles:
2. Put the examples of levers in the correct column
Seesaw, shovel, human mandible, nutcracker, crowbar, scissors,
wheelbarrow, bottle opener, stapler, tweezers, pliers, fishing pole, roman
balance.
First-class lever
Second-class lever
Third-class lever
3. Name these 4 simple machines
4. Fill in the blanks with the words in the box below
Transmission mechanisms deal with the transmission of rotation from one
_____________ to another distant shaft. ________________ allows
transmission between two perpendicular shafts, while ______________
transmit rotation from one gear to another close gear which
____________ in opposite directions. Gears made up of three or more
single gears are called __________________ and can be found inside
_____________________. A belt drive is made up of two grooved
wheels linked by a tense ____________ which deteriorates over time. A
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IES Gómez-Moreno – Departamento de Tecnología
Mechanisms - Activities
__________________, like the one on all bicycles, is used to transmit
rotation between _____________ and ____________ shafts.
distant, “chain drive”, “spur gears”, belt, “simple gear trains”, “worm
gear”, parallel, rotate, shaft, “mechanical clocks”
5. Write the correct term with the following definitions:
• ___________: Cylinder with helical thread running around the
outside.
• ___________: Piece of metal with a threaded hole through it for
screwing.
• ___________: Mechanism composed of a wheel with a grooved
rim.
• ___________: The outer edge of a wheel.
• ___________: Shaft where power is directly applied and
transmits motion to other parts.
• ___________: Shaft that receives motion from other mechanism.
• ___________: Toothed wheel fixed to a shaft.
• ___________: Gear with teeth parallel to the wheel’s shaft.
simple gear train
spur gear
nut
crank
pulley
driven shaft
gear
chain drive
driver shaft
inclined plane
cam
winch
rim
screw
oscillating
6. Put the mechanisms into the correct column
Lever, bevel gears, worm gear, inclined plane, rack and pinion, pulley,
simple gear train, blet drive, cam, nut and bolt, winch, chain drive, spur
gears, compound gear train, compound belt drive, friction drive, crank
Simple machines
Transmission Mechanisms
(don’t change the type of
movement)
Transform mechanisms
(input and output
movements are different)
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