Science_Vocab_GP4_Space Flashcards
(28 cards)
NUCLEAR FUSION
Process that occurs when the nuclei of several atoms combine into one larger nucleus.
COMET
Object made of gas, dust, and ice that moves around the sun in an oval-shaped orbit.
Appearing to eye or mind.
APPARENT
Measure of how bright an object appears from Earth.
APPARENT MAGNITUDE
LIGHT-YEAR
Distance that light travels in one (1) year. (1 light-year =9x10 (12) km, speed of light =300,000 km/s)
ORBIT
Path an object follows as it moves around another object.
Apparent change in an object?s position caused by looking at it from two different points.
PARALLAX
STAR
Large ball of gas held together by gravity with a core so hot that nuclear fusion occurs.
Graph that plots luminosity v. temperature of stars.
HERTZSPRUNG-RUSSELL DIAGRAM
APPARENT MAGNITUDE
Measure of how bright an object appears from Earth.
Path an object follows as it moves around another object.
ORBIT
APPARENT
Appearing to eye or mind.
Time it takes an object to travel once around the sun.
PERIOD OF REVOLUTION
Process that occurs when the nuclei of several atoms combine into one larger nucleus.
NUCLEAR FUSION
Small, rocky object that orbits the sun in the asteroid belt between Mars & Jupiter.
ASTEROID
True brightness of an object.
LUMINOSITY
Large ball of gas held together by gravity with a core so hot that nuclear fusion occurs.
STAR
ASTRONIMICAL UNIT
Average distance from Earth to the sun, about 150 million km.
Distance that light travels in one (1) year. (1 light-year =9x10 (12) km, speed of light =300,000 km/s)
LIGHT-YEAR
LUMINOSITY
True brightness of an object.
ASTEROID
Small, rocky object that orbits the sun in the asteroid belt between Mars & Jupiter.
PARALLAX
Apparent change in an object?s position caused by looking at it from two different points.
The time it takes an object to complete one rotation.
PERIOD OF ROTATION
Object made of gas, dust, and ice that moves around the sun in an oval-shaped orbit.
COMET
