Test
Chapter 1
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Preguntas del test (19)
1Which one of the following statements best describes the Sun?
- Agenerates energy by nuclear fusion
- Blocated 10 AU from Earth
- Corbiting the Solar System
- Dlocated in the centre of the Milky Way
2In the organization diagram below in which area the term: Polaris would appropriate fit?
- AYellow area= Solar system
- BRed area=Milky Way
- CLight Blue= Universe
3Which of the following sequences objects is in the correct order of increasing distance?
- AVenus, Saturn, Moon, Andromeda galaxy, Polaris
- BMoon, Venus, Saturn, Polaris, Andromeda galaxy
- CPolaris, Andromeda galaxy, Moon, Saturn, Venus
- DAndromeda galaxy, Saturn, Venus, Polaris, Moon
4The nearest star to our solar system is alpha Centauri at 4.0 ´ 1016 m (4.3 ly away). The diameter of the sun is 1.4´ 109 m. How many suns would it take to line up adjacent to each other in order to reach alpha Centauri?
- A5.6´10^6
- B5.6´10^8
- C2.8´10^25
- D2.8´10^7
5There approximately 100 billion stars in our galaxy. If there 100 billion observable galaxies in our universe, what is a reasonable estimate for the total number ion the universe?
- A1.0´10^22
- B2.0´10^20
- C1.5´10^15
- D1.0´10^24
6The distance to a super cluster galaxy might be
- A100 Mpc
- B10 Kpc
- C120 Ly
- D10 AU
7Approximately 100 Earths would fit inside Jupiter. This Jupiter’s radius must be …………….times larger that Earth’s radius.
- A100
- B12
- C10
- D1000
8A spherical particle in the ring of Saturn has radius of about 1m. The surface area of the particle in the area of radiation flow is
- A125 m2
- B3.14 m2
- C12.6 m2
- D14 m2
9A spherical particle in the ring of Saturn has radius of about 1m. The cross sectional area of the particle in the area of radiation flow is:
- A125 m2
- B3.14 m2
- C12.6 m2
- D14 m2
10If the landing lights in Denver airport were switched on, then in one second these photons travel to:
- ANew York (1580 km)
- BAlpha Centauri (40,000,000,000 000 km)
- CThe Sun(150,000,000 km)
- DMoon (384,000 km)
11Sirius the brightest star in the sky is about 9 ly away. If the speed of light became half of its present value, how far would Sirius be?
- A9 ly
- B18 ly
- C4.5 ly
- D32 ly
12The Andromeda galaxy is about 2,000,000 ly away. Therefore light started its travel
- A1,000,000 y
- B2,000,000 y
- CJust a second ago
- DCan’t be determined
13In the diagram, what is the diameter of Mercury?
- Aabout 240 km
- Babout 2400 km
- Cabout 24,000 km
- Dabout 240,000 km
14What is 5.7×107 the same as?
- A5.7 million
- B57 thousand
- C570 thousand
- D57 million
15If the distance from the Sun to the Earth is represented by roughly 15 metres, then what would the distance from the Earth to the Moon on the same scale be?
- Aabout 30 metres
- Babout 10 metres
- Cabout 1 metre
- Dsmaller than the width of your hand
16Approximately how many times larger than the diameter of a typical planet (the Earth) is the diameter of a typical star (the Sun)?
- A10 times
- B100 times
- C1000 times
- D10,000 times
17What does the Solar System contain?
- Athe Sun, its planets, and some smaller bodies
- Bthe Sun, galaxies, planets, and stars
- Cthe Sun, planets, moons, and stars
- Dthe Sun, planets, asteroids, and galaxies
18What is the approximate diameter of the Earth?
- A1 AU
- B13,000 light-years
- C13,000 kilometres
- D1,000,000 kilometres
19Which of the following is no longer considered a major planet?
- AMercury
- BUranus
- CPluto
- DSaturn
Información
- Descripción
- Astronomy
- Autor
- Ryan Tram
- Idioma
- English
- Visitas
- 537
- Etiquetas
- Valoración
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