Terms
A region in which certain objects may be attracted or repelled by a magnet
Magnetic field
A wave consisting of an electric field and a magnetic field vibrating at right angles to each other
Electromagnetic wave
Discovered that light is a combination of many colors; discovered laws of motion
Sir Isaac Newton
A device that makes distant objects appear clearer or closer
Telescope
The first manned space mission to actually land on the moon
Apollo 11
A region in which certain objects may be attracted or repelled by an electric force
Electric field
The high point in a wave
Crest
The first astronomer to make extensive use of a telescope in his study of the heavens; made many imporant discoveries
Galileo
The turning back or turning aside of any wave when it hits an obstacle
Reflection
A Russian space station launched in 1986
Mir
The color sequence (red, orange, yellow, green, blue, and violet) that appears when white light is passed through a prism
Visible spectrum
The low point in a wave
Called the "Father of Modern Rocketry"; built and launched the first liquid-fueled rocket
Robert H. Goddard
The bending of any wave's direction at the boundary between two wave media
Refraction
The first satellite launched by the United States
Explorer 1
A movement of energy from one place to another
Wave
The term for whatever carries a wave
Medium
Discovered electromagnetic waves; realized that light as a type of electromagnetic wave
James Clerk Maxwell
A type of telescope that uses mirrors to produce an image
Reflecting telescope
Skylab
A back and forth motion that repeatedly follows the same path
Oscillation
The speed at which electromagnetic waves travel (in a vacuum) is called the speed of light. What is this speed?
186,000 miles per second
Refracting telescope
The first artificial object to orbit the earth
Sputnik 1