Screws, Wedges, Pulleys, Wheels and Axles! Simple Machines Quiz

What are the two simple machines used in the Rube Goldberg machine described in the video?

• Inclined plane and wedge
• Screw and lever
• Lever and pulley
• Wheel and axle, pulley

Who was Rube Goldberg?

• A modern-day machine designer
• A cartoonist who drew complicated imaginary inventions
• A professional cheese maker

What is a chain reaction in the context of a Rube Goldberg machine?

• A method of cooking
• A type of electrical circuit
• When one action causes another thing to happen, which causes another and another

What professional background did Rube Goldberg have before becoming a cartoonist?

• Engineering studies
• Medical training
• Cheese making

What was unique about Rube Goldberg's cartoon inventions?

• They were never drawn
• They were complicated and silly
• They were extremely simple

Which of the following is NOT an example of a wedge?

• Ax
• Needle
• Lever
• Knife

What makes a wedge effective at splitting objects?

• Its triangular shape
• Its color
• Its smooth surface

What is the primary function of a wedge as a simple machine?

• To create friction
• To transform the direction of force
• To generate heat

In construction, wedges are commonly used to:

• Paint walls
• Measure temperature
• Split stone and concrete

How do scissors function as a type of wedge?

• By generating heat
• By increasing friction
• By concentrating force on a narrow edge