Let Quiz 1. Physics & Space Science - Introductory Astronomy

Why can't we see past the cosmological horizon?

Which moon did the Huygens probe land on?

Suppose you live in the United States and you see a crescent moon in your evening sky tonight. What will a friend in South America see tonight?

4

A person of mass 50. kg has a wavelength of 4.42 × 10-36 m when running. How fast is she running?

5

The proton storms in the solar wind travel at almost the speed of light

6

Which statement about seismic waves is TRUE?

7

The image of our galaxy in radio emission from CO, mapping the distribution of molecular clouds, is closest to the image of our galaxy in

8

Blue light hitting a red sweatshirt is an example of

9

Which lunar feature most resembles the Moon's original crust?

10

In the development of a terrestrial planet, the stage of ____ occurred when molten rock flowed through fissures and filled deep basins

11

Which of these evolutionary paths is the fate of our Sun?

12

Large interstellar clouds can collapse to form several stars approximately at the same time.

13

The most massive stars have masses somewhere around

14

All ________ planets have rings around their equators

15

The differential gravitational force of the Moon on Earth is the cause of ________.

16

Nearby active galaxies, such as Centaurus A, are likely the mergers between colliding galaxies

17

The most efficient engine possible is the

18

If the date is April 21, what zodiac constellation will be visible on your meridian at midnight?

19

What is the ultimate fate of an open universe?

20

Why is the temperature at the region of a sunspot cooler than the photosphere?

21

Electrons are emitted from a surface when light of wavelength 500 nm is shone on the surface but electrons are not emitted for longer wavelengths of light. The work function of the surface is

22

What are the three possible types of universe and what features distinguish them?

23

Which of the following best explains the success of the central African rainfall-prediction technique of observing the waxing crescent Moon?

24

If the Moon is setting at noon, the phase of the Moon must be

25

Because the _______________ of the Moon and the Sun vary slightly, the disk of the Moon is sometimes too small to cover the disk of the Sun

26

What future awaits Triton, the largest satellite of Neptune?

27

The energy from the accretion disk around a black hole would show gravitational redshift due to its immense gravity and tidal distortion of space there

28

The distribution of the mass of the Milky Way Galaxy is determined by

29

When air resistance is a factor, maximum range is achieved when the projection angle is

30

Which of the following is not consistent with observations of the cosmic microwave background?

31

If a sunspot has a temperature of 4,500 K and the surrounding solar surface has a temperature of 5,800 K, how many times brighter is the surface compared to the sunspot?

32

If the density of the Universe is less than the critical density, then

33

The deepest depression found on the surface of Mars is the:

34

A neutron star, which generates gamma-ray bursts due to "starquakes" on its surface, is called a(n) _______________

35

Which statement about the Moon's solar month and sidereal month is correct?

36

What do we mean when we say that the Sun is in energy balance?

37

_______________ require that a young hot star (T ≥ 25,000 K) be relatively nearby

38

The most luminous stars in elliptical galaxies are:

39

A 1.0-kg object is moving with a constant velocity 2.0 m/s toward the north. There are two forces acting on the object. One of the forces is 3.0 N north. What is the second force that acts on the object?

40

If Venus once had an ocean, where did it go?

41

Compare the differential rotation rates of the four jovian planets

42

A star whose parallax is 0.01 seconds arc is at a distance of 1000 pc

43

Our Sun is considered to be a(n) ________

44

Helioseismology is the study of the differential rotation and magnetic field of the sun

45

The supernova of 1054 AD produced:

46

The Schwarzschild radius of a black hole depends on ________

47

The Big Bang formed

48

Although neutron stars are very hot, they are faint and not easy to see at visual wavelengths because

49

Process of Science: Why did astronomers identify Pluto as a planet from its discovery? What scientific evidence led to its reclassification?

50

In the Hubble Classification scheme, the three main types of galaxies are ________, ________, and ________

51

What are giant molecular clouds?

52

This graph plots planetary mass on the horizontal axis and planetary radius on the vertical axis. Which of the four points marked by one of the bold numbers 1 through 4 represents a planet with the greatest density?

53

What is the approximate temperature of the Sun's core?

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Let Quiz 1. Physics & Space Science - Introductory Astronomy

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