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Astrophysics

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

At what layer do jets fly

a)

Vesophere

b)

Exosphere

c)

Mesospere

d)

Stratosphere

2.
Where does fusion occur naturally?
a)
Underwater
b)
All around us
c)
In the radioactive waste
d)
On the sun
3.

The distance light could travel along a straight line in one year is called...

a)

Light road

b)

Light paths

c)

The straight line of light

d)

Light year

4.

A large ensemble of stars, all interacting through the gravitational force and orbiting around a common center is called

a)

Constellation

b)

Galaxy

c)

Star cluster

d)

Star show

5.

The types of galaxies are

a)

circular, flat, shiny, irregular

b)

constellation, star pattern, planet arrangement, irregular

c)

spiral, elliptical, lenticular, irregular

d)

black, white, red, blue

6.

The brightness of a star as seen in the night sky.

a)

Apparent magnitude

b)

Brightness magnitude

c)

Brightness scale

d)

Star magnitude

7.

An H-R diagram is : (choose all that are true)

a)

Hertzsprung-Russell Diagram

b)

a diagram that compares the relationship between a star's temperature and it's magnitude.

c)

plots spectral letters and absolute magnitude on a graph

d)

Hertzmann-Ross Diagram

8.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
9.

A star’s brightness depends on its _________.

Its color depends on its ___________________.

Its life cycle depends on its __________.

a)

size, mass, color

b)

size, temperature, mass

c)

temperature, mass, size

10.

Which of the following is the largest?

a)

Parsec

b)

Lightyear

c)

Astronomical Unit

d)

1 billion Kilometers