ch. 10 part a

Question 1

The brightness of a star is called its

a. variableness
b. redshift
c. parallax
d. magnitude

Answer 1

d. magnitude

Question 2

the measurement of a star’s apparent movement over time is known as ___.

a. variableness
b. redshift
c. parallax
d. magnitude

Question 3

___ are the largest and brightest stars.

a. neutron stars
b. supergiants
c. giants
d. supernovas

Answer 3

b. supergiants

Question 4

When an existing star flares up and becomes brighter than normal, it is called a ___.

a. giants
b. supergiants
b. nebula
d. nova

Answer 4

d. nova

Question 5

stars that regularly or repeatedly change in magnitude are called ___.

a. giants
b. blue stars
c. variable stars
d. pulsars

Answer 5

c. variable stars

Question 6

a neutron star that spins rapidly on its axis is called a ___.,

a. pulsar
b. giant star
c. nova
d. red star

Answer 6

a. pulsar

Question 7

a cloud of dust, gases, and debris is called a

a. drawf
b. nebula
c. nova
d. super giant

Answer 7

b. nebula

Question 8

smaller stars, like our sun, are ___.

a. dwarf stars
b. nebula
c. neutron stars
d. giants

Answer 8

a. dwarf stars

Question 9

when a massive supergiant star collapses and disappears from space, scientists call what is left a ____.

a. supernova
b. neutron star
c. black hole
d. pulsar

Answer 9

c. black hole

Question 10

a group of stars that form a pattern is called a ___

a. globular star cluster
b. constellation
c. open star cluster
d. galaxy

Answer 10

b. constellation