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Ch. 7 LIGHT
Light
10
Science
Undergraduate 2
02/29/2012

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Cards

Term
Speed that light travels
Definition
Light is a wave; travels at the speed of 186,000 miles/second
Term
Thomas Young - double-slit experiment
Definition
Proved light is a WAVE; once put the light through the DOUBLE SLIT, he got a PATTERN
Term
What is LIGHT?
Definition
A wave of ELECTRIC and MAGNETIC FIELDS; seen in police radar guns, microwaves, and X-Rays
Term
RADIATION
Definition
Present in waves of electromagnetic field, traveling at the speed of light
Term
What does wavelength determine?
Definition
How much radiation there is; the SHORTER the WAVELENGTH, the more DANGEROUS!!
Term
ELECTROMAGNETIC SPECTRUM
Definition
Depicts a field of different WAVELENGTHS
Term
Visible spectrum
Definition
Colors are part of the visible spectrum on the electromagnetic spectrum (SEE POWERPOINT)
Term
Wavelength and frequency
Definition
They are INVERSELY RELATED
Term
Infrared
Definition
Measures RADIATION
Term
Object's TEMPERATURE
Definition
DETERMINES FREQUENCY AND ENERGY
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