Details

Title: ASTRONOMY 101

Description: CHAPTER 5

Total Flash Cards: 14

Created: 08/28/2007 16:39:36

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Additional Astronomy Flashcards

Cards in this set:

Term
TRANSITS OF VENUS
 Definition
FROM THE 17TH CENETURY ONWARD, ASTRONOMERS MADE MORE AND MORE ACCURATE MEASUREMENTS OF THIS TYPE, ESPECIALLY ON RARE OCCASIONS CALLED
Term
SPECTRAL LINE
 Definition
SCIENTISTS REALIZED THAT THESE ___WERE REALTED TO THE PRESENCES OF VARIOUS TYPES OF ATOMS IN THE SUN'S ATMOSPHERE, A WINDOW FINALLY OPENED TO REAL UNDESTANDING OF THE SUN
S NATURE.
Term
DENSITY
 Definition
MASS PER VOLUME
Term
ATOM
 Definition
THE SMALLEST UNIT OF A CHEMICAL ELEMENT, CONSISTING OF A NUCLEUS CONTAINING PROTONS AND NEUTRONS PLUS A SURROUNDING CLUD OF ELECTRONS
Term
NUCLEUS
 Definition
THE CENTRAL CORE OF ATOM CONTAINING PROTONS AND NEUTRONS THAT CARRIES A NET POSITIVE CHARGE
Term
PROTONS
 Definition
A POSITIVELY CHARGE ATOMIC PARTICLE CONTAINED IN THE NUCLEUS OF AN ATOM. THE NUCLEUS OF A HYDROGEN ATOM
Term
NEURON
 Definition
AN ATOMIC PARTICLE WITH NO CHARGE AND ABOUT HE SAME MASS AS A PROTON
Term
ELECTRON
 Definition
LOW MASS ATOMIC PARTICLE CARRYIN A NEGATIVE CHARGE
Term
MOLECULES
 Definition
TWO OR MORE ATOMS BONDED TOGETHER
Term
HEAT
 Definition
ENERGY STORED IN A MATERIAL AS AGITATION AMONG ITS PARTICLES
Term
TEMPERATURE
 Definition
A MEASURE OF THE AGITATION AMONG THE ATOMS AND MOLECULES OF A MATERIAL, THE INTENSITY OF HEAT.
Term
ABSOLUTE ZERO
 Definition
THE THEORETICAL LOWEST POSSIBLE TEMPERATURE AT WHICH A MATERIAL CONTAINS NO EXTRACTABLE HEAT ENERGY. ZERO ON THE KELVIN TEMPERATURE SCALE.
Term
ABSOLUTE ZERO
 Definition
THE THEORETICAL LOWEST POSSIBLE TEMPERATURE AT WHICH A MATERIAL CONTAINS NO EXTRACTABLE HEAT ENERGY. ZERO ON THE KELVIN TEMPERATURE SCALE.
Term
KELVIN TEMPERATURE SCALE
 Definition
A UNIT OF DIANTANCE EQUAL TO 1000 pc OR 3260 ly