Simple Machines
This simple machine is a rigid bar that rotates around a fulcrum.
What is a lever?
Invented by an ancient Greek mathematician, this device used a rotating screw to raise water for irrigation.
What is an Archimedes Screw?
A machine made up of multiple simple machines working together as a system is called this
When two gears touch, the second gear that receives force from the first is called this
What is the driven gear?
This simple machine increases force by concentrating it on a narrow edge and is used for splitting and cutting
What is a Wedge?
This ancient structure used channels, pumps, and distribution systems to transport water across long distances to other cities
What are Roman Aqueducts?
In a complex machine, a smaller group of parts that performs a specific job is called this.
What is a subsystem?
These gears increase turning speed because the driving gear is larger than the driven gear
What are multiplying gears?
This simple machine is made up of two wheels that can help increase speed
What is a wheel and axle?
This modern invention allows surgeons to operate through tiny incisions by watching a screen and controlling a robotic arm at a distance.
What is the Da Vinci robotic arm?
This term refers to a group of parts that work together to perform a function, such as a bicycle or crane
What is a system?
These gears decrease turning speed because the driving gear is smaller than the driven gear.
What are reducing gears
This machine helps move heavy objects up shorter distances by spreading the work over a longer distance.
What is an inclined plane?
This water-lifting device used a series of buckets attached to a wheel and was powered by animals like donkeys or camels.
What is a Sakia (Persian Wheel)?
These subsystems use chains or belts to transfer force from one part of a machine to another.
What are linkages?
This is the name of the gear that has the original force applied to it.
What is the driven gear?
This machine includes a stationary wheel with a groove and a rope or cable, and helps lift loads with less effort
What is a fixed pulley?
This machine turned flowing water into rotational motion to grind grain or power machinery
What is a mill wheel?
This subsystem transfers energy from an engine to the wheels and contains multiple gears for different speeds.
What is a Transmission?
When the driver gear is rotating in clockwise motion, the driven gear rotates in this direction.
What is counterclockwise direction?