A rigid bar used to exert a pressure or
sustain a weight at one point of its length
by the application of a force at a second
point and turning on a fulcrum at a third.
What is a lever?
100
Invented by Alexander Graham Bell in 1876, this device is used to transmit voice over long distance.
What is a telephone?
100
An engineer who studies motion, energy, and force to develop various solutions for mechanical systems.
What is a Mechanical Engineer?
200
Engineer who founded Microsoft.
Who is Bill Gates?
200
A wheel with a groove in its rim that is used to change the direction and magnitude of a force exerted by a rope or cable.
What is a pulley?
200
Originally the size of an entire room, this invention is now small enough to fit easily into pockets.
What is a computer?
200
Engineers who plan, design, build, and maintain various structures.
What is a Civil Engineer?
300
Famous Renaissance artist who was also known for his inventions including a medieval flying machine.
Who is Leonardo Da Vinci?
300
The measure of the output force of a simple machine compared to the input force
What is Mechanical Advantage?
300
Originally released in 2001 to little excitement, this invention went on to become one of the best-selling consumer electronics in the world.
What is an iPod?
300
Engineers who design aircraft, spacecraft, satellites, and missile systems.
What is an Aerospace Engineer?
400
She famously discovered radiation, before dying due to radiation exposure.
Who is Marie Curie?
400
Multiple simple machines working in tandem.
What is a compound machine?
400
Invented on accident while trying to create super-strong glue, this invention uses super-weak glue to adhere notes to surfaces with easy removal.
What is a Post-it Note?
400
Engineers who work to improve processes or systems, particularly in manufacturing.
What is an Industrial Engineer?
500
Engineer who, among many other inventions, was rumored to have invented a "death ray" and an "earthquake machine".
Who is Nikola Tesla?
500
An inclined plane wrapped around a cylinder, forming a path and pitch
What is a screw?
500
Invented in the 1970s, this device used thin magnetic tape to store and transfer data between computers.
What is a floppy disk?
500
Engineer who designs and implements systems that control how substances interact with one another.