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Machines (10:25)

A CHAPTER FROM: Physical Science, the Basics: Tools and Machines

A machine is a tool that makes work easier.

  • 6-8
    Grades 6-8

How Compound Machines Work: The Cartoons of Rube... (2:20)

A SECTION FROM: Work, Energy, and the Simple Machine: Compound Machines

Rube Goldberg’s cartoons feature complicated machines made out of simple household items.

Video Quiz: Compound Machines (3:43)

A CHAPTER FROM: Work, Energy, and the Simple Machine: Compound Machines

This video quiz is about Work, Energy and the Simple Machine: Compound Machines

Lever (2:41)

A CHAPTER FROM: Work, Energy, and the Simple Machine: Lever, Wheel and Axle,...

The first of the simple machines highlighted on this video is explained and demonstrated.

Mechanical Advantage (2:19)

A CHAPTER FROM: Work, Energy, and the Simple Machine: Lever, Wheel and Axle,...

This portion of the video defines mechanical advantage and explains how to calculate it for each of the three simple machines.

Inclined Plane (2:27)

A CHAPTER FROM: Discovering Simple Machines: Inclined Plane, Wedge, Screw

The inclined plane, or ramp, is a simple machine used for over four thousand years to decrease the effort required to move heavy objects.

A Brief Review of Inclined Plane, Wedge, Screw (1:28)

A CHAPTER FROM: Discovering Simple Machines: Inclined Plane, Wedge, Screw

The inclined plane, wedge, and screw are three of the six simple machines and are grouped together because they all share the common idea of the inclined plane.

Building the Pyramids of Giza (8:44)

A CHAPTER FROM: Science Investigations: Physical Science: Investigating Moti...

Viewers see how architectural wonders were built using simple machines. The Parthenon was built using simple tools. Cutting and transporting large objects in ancient times took ingenuity. The creation of the elevator is explained. Simple machines...

Construction Equipment (0:28)

A SECTION FROM: Work, Energy, and the Simple Machine: Compound Machines

Simple machines are combined to make compound machines in construction equipment.

A Brief Review of Inclined Plane, Wedge, Screw (1:11)

A CHAPTER FROM: Work, Energy, and the Simple Machine: Inclined Plane, Wedge,...

Simple machines are commonly found around our homes, businesses and schools. They help us do work more efficiently. Screws, wedges, and inclined planes play an important role in our everyday lives.

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