Quiz 4

Question 1

A _____ star system is a system of two stars that are gravitationally linked so that they orbit their common center of mass

Answer 1

Binary

Question 2

What do we call a hydrogen nucleus that contains one neutron and one proton

Answer 2

Deuterium

Question 3

The study of the propagation of pressure waves in the sun is called

Answer 3

Helioseismology

Question 4

What is the name of the spacecraft that flew by and released a probe that crashed into the nucleus of comet Temple 1

Answer 4

Deep Impact

Question 5

What do we call the continuous outflow of charged particles from the sun?

Answer 5

Solar Wind

Question 6

The Tail of a comet consists of the nucleus and the

Answer 6

Coma

Question 7

What makes up about 99.98% of the mass of an atom

Answer 7

nucleus

Question 8

If a meteorite survives its fall to Earth it is called a meteoroid

Answer 8

False

Question 9

The meteor shower seen in mid-November is called the Leonids. That is because

Answer 9

the radiant of the shower is located in the constellation Leo

Question 10

A star’s parallax is 1 arcsecond, the star’s distance from us is

Answer 10

1 parsec

Question 11

The 11 year sunspot cycle corresponds to

Answer 11

The period of change in the magnetic field of the sun

Question 12

On the main sequence, the greater the luminosity of a star, the greater its

Answer 12

Temperature and Mass

Question 13

The age of the solar system is about

Answer 13

5 billion years

Question 14

What do we call the number of separate atomic and/or nuclear particles per unit of volume?

Answer 14

Particle Density

Question 15

The layer of the sun that is normally visible to us is the

Answer 15

Photosphere

Question 16

A prominence is

Answer 16

The ejection of material from the photosphere

Question 17

The sun’s energy is generated by

Answer 17

Hydrogen fusion

Question 18

The Eta Aquarids meteor shower that peaks in early may is associated with Halley’s comet

Answer 18

True

Question 19

Most of the known asteroids

Answer 19

Can be found between the orbits of Jupiter and Mars

Question 20

The discovery of asteroids depends on the fact that, compared with the stars, the asteroid

Answer 20

Move

Question 21

The Hertzprung–___________ (H-R) diagram is a plot of luminosity (absolute magnitude) versus temperature (or spectral class) for stars

Answer 21

Russell

Question 22

Stars on the main sequence that have a small mass are

Answer 22

Dim and Cool

Question 23

The name of the 180 km wide crater off the Yucatan peninsula is anmed

Answer 23

Chicxulub

Question 24

We can see a comet on every night of the year with a naked eye

Answer 24

False

Question 25

What do we call the distance from the sun to an object that has a parallax angle of one arcsecond

Answer 25

Parsec