Mechanical Linkages and Gears

Front

A group of gears that work together like wheels and axles to move power and make things turn. What is this called?

Back

Gear Train

Front

A part with a round gear (pinion) and a straight gear (rack) that changes turning motion into straight movement. What is this called?

Back

Rack and Pinion

Front

Four bars connected in a loop that can move. It helps make many machines work, but it's not a simple machine by itself. What is this called?

Back

Four-bar Linkage

Front

Bevel gears are special gears shaped like ______ that help turn motion between shafts that meet at an angle.

Back

cones

Front

A ratchet lever only lets motion go ______, not backwards.

Back

one way

Front

A worm gear uses a ______ (worm) to turn a wheel and make slow, strong movement.

Back

screw

Front

What is a universal joint?

Back

A joint that connects two shafts so they can turn even if they aren’t lined up straight.

Front

What is a scissor mechanism?

Back

Two levers joined in the middle with blades that cut, working together as a compound machine.