This lesson explains why kinetic friction does not depend on how quickly an object is sliding across a surface. It is 2 of 2 in the series titled "Kinetic Friction & Speed."

Here is a concise article on short track speed skating which includes great illustrations of the short track (it shows how it differs from the long track), the "glide stride" used by skaters, and the skates worn by competitors. Watch a...

Here is a concise article on short track speed skating which includes great illustrations of the short track (it shows how it differs from the long track), the "glide stride" used by skaters, and the skates worn by competitors. Watch a...

In a provided image, students try to identify what ordinary objects in the house can kick light into a lower gear. Find out why the speed of light isn't always 186,000 miles per second.

An image of "Rain, Steam and Speed The Great Western Railway", created by Joseph Mallord William Turner before 1844 (Oil on canvas, 91 x 122 cm).

Wind tunnel at Langley Research Center.

Learn the difference between the short-track and long-track speed skating competitions. This brief article provides information on both forms of speed skating, including historical information, a list of events, and links to articles on...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations and the instruments that measure them. Here you can find a photograph of a solar-powered Surface Automated Measurement (SAM) site....

Here is a concise article on short track speed skating which includes great illustrations of the short track (it shows how it differs from the long track), the "glide stride" used by skaters, and the skates worn by competitors. Watch a...

This interactive world map allows you to view factors associated with monsoons. Monsoon data displayed includes factors such as precipitation, wind speed, soil moisture, and ocean temperatures. Links to monsoons associated with specific...

This fluency graphic organizer for reading speed and comprehension will be used to record reading times and what they learned. Guiding questions are included to help students reflect about what they learned. This resource's prompts are...

Discusses the history of electronic banking, banking problems, vacuum tubes vs. transistors, magnetic ink character reading, handling paper at high speed, and the ERMA.

Monitor the evolution of storms in the northern and southern hemispheres using data such as sea level pressures, wind speed and wave height. Records go back as far as 90 days.

A triple eclipse crossing the face of Jupiter on 2 Feb 98. This set of five images captures the passage of the shadows of Io, Callisto, and Ganymede across the face of Jupiter.

Discusses the meaning of velocity in terms of a graphical representation. Calculus-based discussion. Good graphics.

As the tempo of life accelerated and speed became a virtue, a horse-racing craze swept the nation. At the track, stopwatches made it possible to post winning times in quarter-seconds! In 1855, Lexington, the country's most famous horse,...

This animated 5 day forecast for the jet stream shows wind direction and wind speed. The forecast was generated on January 1, 2001 by the Fleet Numerical Meteorology and Oceanography Center.

This lesson will describe that a catalyst is something which can speed up a reaction by lowering activation energy. It is 4 of 4 in the series titled "Catalyst."

An invisible, ancient source of energy surrounds us-energy that powered the first explorations of the world, and that may be a key to the future. This map shows you the delicate tracery of wind flowing over the US.

A map from 1872 of Mexico, showing states and state capitals, major cities, towns, and ports, railroads, lakes and rivers, mountain systems, terrain, and coastal features. Steamship routes to major ports are shown, with distances marked...

Definitions and descriptions of a variety of seismic waves such as s, p, Love, and Rayleigh waves, diagrams, and speeds.

Definitions and descriptions of a variety of seismic waves such as s, p, Love, and Rayleigh waves, diagrams, and speeds.

An article on the topic of hard drives. Includes what a hard disk is, brief history, parts of a hard disk with illustration, speed, and size.

An article on the topic of hard drives. Includes what a hard disk is, brief history, parts of a hard disk with illustration, speed, and size.