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Stars 1
Stars 1
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Questions
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Answers
1
What is pressure?
Force per unit of area
Mass times acceleration
Mass times force
Opposing forces
2
What information is NOT included in the HR diagram?
The star's luminosity
The star's temperature
The star's distance
The life cycle of a star
3
The hottest stars are...?
Blue
Yellow
Red
white
4
Stars are classifies according to...?
Their shape and color
Their size and distance to the sun
Their temperature and luminosity
How many planets they hold
5
When was Isaac Newton born?
1441
1821
1643
1127
6
The minimum mass of a star for it to reach nuclear fusion is around...?
10 solar mases
0.08 solar masses
1/4 solar mass
0.5 solar masses
7
What is a Parsec?
Average distance of the Earth's orbit around the sun
Alien race of Star Wars
the distance at which 1 AU subtents an angle of 1 arcsecond
Distance from the Sun to the nearerst star
8
The largest known star is...?
The sun
Patrick
Betelgeuse
Canis Majoris
9
What are empirical values?
Values derived through logic
Unknown values
Values derived through mathematics
Values derived through experimentation
10
The sun is a...?
Class I white star
Class II orange star
Class IV red star
Class V yellow star
11
Which one of Newtons laws explains why you should wear a seatbelt?
Law of Universal gravitation
Law if Inertia
Law for forces
Law of Action and Reaction
12
What is NOT always true about stars?
They are balls of gases
The produce electromagnetic energy
They undergo nuclear fusion
They have planets orbiting them
13
The equation for force is...?
F= m x a
F= m/a
F= m x G
F= m1 - m2/g
14
The difference in direction of a celestial object as seen from two widely separated points is?
Universal parallax
Cosmic parallax
Stellar parallax
Perplexing parallax
15
From Earth, with the naked eye, you can see about ...?
6,000 stars
100 stars
1,000,000 stars
120,000 stars
16
According to Newton's theories, light was made of...?
Waves
Animacules
ether
Particles
17
What parallax uses a base line between two widely separated points on the Earth?
Heliocentric parallax
Cosmic parallax
Geocentric parallax
Terrestrial parallax
18
The brightness of a star as it appears to us on Earth is it's...?
Brillliance
Apparent magnitude
Cosmological luminosity
Absolute magnitude
19
In the equation : F gav = (G x m1 x m2)/ r2 G stands for...?
Acceleration
Force of attraction
Gravity
Newton's constant
20
Newton's famous book was titled...?
Principia Mathematica
The Laws of Physics
The Origin of Species
The Amazing forces of the Universe
21
The greater the base line calculating a parallax...?
The lowest the precision of the measurement
The harder to calculate the distance of the object
The farther the object
The greatest precision of measurement
22
The amount of electromagnetic energy emitted by a star in a specific amountof time is it's?
Potential output
Luminosity
Apperture
Magnitude
23
Where did Newton attend college?
Yale
KU
Cambridge
Oxford
24
The abbreviation for parsec is...?
Psic
Ps.
Pc.
Par.
25
The smallest stars, as small as 15 miles in diameter are the...?
red dwarfs
Neutron stars
Pigmy stars
White dwarfs
26
According to Netwon's Second Law, acceleration happens when...?
Two forces oppose each other
Energy is applied to a system
An object at rest tends to remain at rest
A force acts on a mass
27
The difference in the apparent position of an object viewed along two different lines of sight?
Parallax
reflective angle
Depht of field
Perspective
28
According to the HR diagram the sun is a...?
brown dwarf
Red giant
Main sequence star
White dwarf
29
The greater the mass of a star...?
The slower it moelcules collide
The longer it last
The colder it burns
The shorter it last
30
The closest star (other than the sun), Proxima Centauri is about ...?
1,000 trillion miles
1 gooogolplex
10 million miles
25 trillion miles
