Science_Vocab_GP4_Space Flashcards

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1
Q

NUCLEAR FUSION

A

Process that occurs when the nuclei of several atoms combine into one larger nucleus.

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1
Q

COMET

A

Object made of gas, dust, and ice that moves around the sun in an oval-shaped orbit.

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1
Q

Appearing to eye or mind.

A

APPARENT

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2
Q

Measure of how bright an object appears from Earth.

A

APPARENT MAGNITUDE

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3
Q

LIGHT-YEAR

A

Distance that light travels in one (1) year. (1 light-year =9x10 (12) km, speed of light =300,000 km/s)

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5
Q

ORBIT

A

Path an object follows as it moves around another object.

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5
Q

Apparent change in an object?s position caused by looking at it from two different points.

A

PARALLAX

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6
Q

STAR

A

Large ball of gas held together by gravity with a core so hot that nuclear fusion occurs.

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7
Q

Graph that plots luminosity v. temperature of stars.

A

HERTZSPRUNG-RUSSELL DIAGRAM

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9
Q

APPARENT MAGNITUDE

A

Measure of how bright an object appears from Earth.

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10
Q

Path an object follows as it moves around another object.

A

ORBIT

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11
Q

APPARENT

A

Appearing to eye or mind.

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12
Q

Time it takes an object to travel once around the sun.

A

PERIOD OF REVOLUTION

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14
Q

Process that occurs when the nuclei of several atoms combine into one larger nucleus.

A

NUCLEAR FUSION

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14
Q

Small, rocky object that orbits the sun in the asteroid belt between Mars & Jupiter.

A

ASTEROID

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15
Q

True brightness of an object.

A

LUMINOSITY

16
Q

Large ball of gas held together by gravity with a core so hot that nuclear fusion occurs.

A

STAR

18
Q

ASTRONIMICAL UNIT

A

Average distance from Earth to the sun, about 150 million km.

19
Q

Distance that light travels in one (1) year. (1 light-year =9x10 (12) km, speed of light =300,000 km/s)

A

LIGHT-YEAR

20
Q

LUMINOSITY

A

True brightness of an object.

21
Q

ASTEROID

A

Small, rocky object that orbits the sun in the asteroid belt between Mars & Jupiter.

22
Q

PARALLAX

A

Apparent change in an object?s position caused by looking at it from two different points.

23
Q

The time it takes an object to complete one rotation.

A

PERIOD OF ROTATION

24
Q

Object made of gas, dust, and ice that moves around the sun in an oval-shaped orbit.

A

COMET

25
Q

HERTZSPRUNG-RUSSELL DIAGRAM

A

Graph that plots luminosity v. temperature of stars.

26
Q

PERIOD OF REVOLUTION

A

Time it takes an object to travel once around the sun.

27
Q

Average distance from Earth to the sun, about 150 million km.

A

ASTRONIMICAL UNIT

28
Q

PERIOD OF ROTATION

A

The time it takes an object to complete one rotation.