Tag: the universe

Quizzes (16) Questions (28)

Questions Related to the universe

Multiple choice physics the universe types of galaxies galaxies constellations

Besides our own galaxy there are about ______ other galaxies scattered all over the universe.

  1. 2 billion

  2. 100 billion

  3. 10000 billion

  4. 1000000 billion
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Besides our own galaxy, there are about 100 billion other galaxies scattered all over the universe.
Its a fact.
Multiple choice physics the universe types of galaxies galaxies constellations

State whether true or false:

Milky Way is a family of stars, with dust and hydrogen, to which our Sun belongs.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A galaxy is vast collection of stars, dust and hydrogen gas. The solar system, our own Sun and its family or its family of planets belongs to a particular galaxy known as the Milky Way. In this way, our Sun and its family members constitute a small fraction of the galaxy.
Hence, the statement is true.

Multiple choice physics the universe types of galaxies galaxies constellations

The spiral and disc shaped galaxy in which, our solar system is located is named -

  1. Milky way galaxy

  2. Andromeda&nbsp;<span>galaxy</span>

  3. Cartwheel&nbsp;<span>galaxy</span>

  4. Sunflower&nbsp;<span>galaxy</span>
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Our solar system is a part of the Milky way galaxy which is one of the numerous galaxies in the universe. Its name "milky" is derived from its appearance as a dim glowing band arching across the night sky in which the naked eye cannot distinguish individual stars.

Multiple choice physics the universe types of galaxies galaxies constellations

Fill in the blank:

The billions of stars which occur in the form of groups or clusters are commonly called _______ .

  1. galaxies

  2. nebula

  3. plutons

  4. <span class="st">stellar</span>
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction is galaxy.
The galaxy of which the solar system is a part; the Milky Way.
Multiple choice physics the universe planets of the solar system solar system and sun introduction to solar system

Galileo's observations that venus shows all  of the phases, was important because, it discredited?

  1. Newtons law of gravitation.

  2. The Copernican theory

  3. Keplers Harmonic Law

  4. The Ptolemaic Theory
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Galileo observed that Venus goes through a full set of phases, which is only possible if Venus orbits the Sun. This observation directly contradicted the Ptolemaic (geocentric) model, which could not account for the full range of phases.

Multiple choice physics the universe planets of the solar system solar system and sun introduction to solar system

All the planets in the solar system revolve around the Sun in same plane. This statement is

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Most of the planets orbit the Sun very near the same plane in which the Earth orbits, the ecliptic.
The orbits of the planets are ellipses with the Sun at one focus, though all except Mercury are very nearly circular. The orbits of the planets are all more or less in the same plane (called the ecliptic and defined by the plane of the Earth's orbit). The ecliptic is inclined only 7 degrees from the plane of the Sun's equator.
Hence, the statement is true.