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Sunita in Space

Description: Science, Sunita in Space, The moon, V
Number of Questions: 15
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Tags: Sunita in Space Role of Medium in Radiation Difference Between Clinical Thermometer and Laboratory Thermometer Air as an Insulator How to Read a Clinical Thermometer How Woollen Clothes Keep Us Warm in Winter Loss of Heat by Radiation Meaning of Temperature Role of Colours in Case of Heat Radiations Examples of Good Conductors and Poor Conductors Differenece Between Good Conductors and Poor Conductors
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The Moon is our nearest neighbour in space. What is the distance of the Moon from the Earth?

  1. 384,400 Kms

  2. 225 million Kms

  3. 261 million Kms

  4. 300 Kms

  5. 30 Kms

Show answer
Correct Option: A
Explanation:

This is the distance of the Moon from the Earth.

Which of the following bodies in space causes tides and why?

  1. The Moon causes tides because of its light.

  2. The Sun causes tides because of its heat.

  3. The Moon causes tides because of its gravity.

  4. The Sun causes tides because of its gravity.

  5. Meteors cause tides because they enter the earth's gravity.

Show answer
Correct Option: C
Explanation:

This is the correct answer. The Moon's gravity is lesser than the earth's gravity, but it is still effective on Earth. It pulls the water of the oceans and the seas as it gravitates around the Earth giving rise to the tides.

Which of the following is the correct weight of Reena on the Moon if her weight on Earth is 60 kgs?

  1. 60 kgs

  2. 600 kgs

  3. 6000 kgs

  4. 10 kgs

  5. 360 kgs

Show answer
Correct Option: D
Explanation:

This would be the weight of Reena on the Moon because the gravity of Moon is one sixth that of gravity on Earth. Thus 60/6 = 10 kgs.

Which of the following statements is/are incorrect? a. The Sun stays above the horizon 24 hours a day in some places. b. The Moon is the same size as the Sun. c. The planets revolve around the Sun.

  1. Only a

  2. Only b

  3. Only c

  4. Only a and b

  5. Only a and c

Show answer
Correct Option: B
Explanation:

This is incorrect. The Sun is bigger than the Moon. The Sun and the Moon appears the same size because the latter is closer to the Earth.

Which of the following is/are not present on the Moon? a. Air b. Water c. Rocks d. Craters e. Dust

  1. Only a and b

  2. Only c and d

  3. Only a and e

  4. Only a, b, and e

  5. Only a, b, c, and d

Show answer
Correct Option: A
Explanation:

There is no air and water on the Moon.

A solar eclipse occurs when _____________.

  1. The shadow of the Earth blocks the Sun completely.

  2. The shadow of the Moon blocks the Sun completely.

  3. The shadow of the Earth blocks the Moon completely.

  4. The shadow of the Sun blocks the Moon completely.

  5. The shadow of the Sun blocks the Earth completely.

Show answer
Correct Option: B
Explanation:

At the time of an eclipse the sun the Moon and the Earth are in a straight line with the Moon between the Earth and the Sun. When the Moon blocks all the light from the Sun it is called a solar eclipse.

Which of the following is/are correct? a. Constellations move randomly in the sky. b. The Sun is the only planet that we can see in the day. c. Venus was called the morning or evening star.

  1. Only a

  2. Only b

  3. Only c

  4. Only a and b

  5. Only b and c

Show answer
Correct Option: C
Explanation:

This is the correct satatement. Venus is called the morning or the evening star. Although Venus is a planet, but in ancient civilisations it was known as the morning star or the evening star as it came close to the Earth and could be seen by the naked eye.

Which of the following reasons is/are correct for there being no sound on the Moon? a. There is no air on the Moon. b. There is no gravity on the Moon. c. There is no life on The Moon.

  1. Only a

  2. Only b

  3. Only c

  4. Only a and b

  5. All of these

Show answer
Correct Option: D
Explanation:

This is the correct option. There is no gravity so there is no atmosphere and no air. Thus no sound can be heard. There is no air on the Moon, hence no sound can travel on it.

Artificial satellites are used for which of the following reasons? a. Space researchb. Reflecting radio and telephone wavesc. Navigation of ships and air craftsd. Weather forecasting

  1. Only a and b

  2. Only a, b and c

  3. Only a and d

  4. All of these

  5. Only a

Show answer
Correct Option: D
Explanation:

This is the correct answer. All these are correct usages of artificial satellites.

The Moon is the brightest object in the sky after the Sun. Which of the following reasons is correct for its brightness?

  1. It shines because of the gases present on it.

  2. It shines because of the thick shining dust on its surface.

  3. It shines because it reflects the colour of the water on the Earth's surface.

  4. It shines due to the craters caused by meteorites.

  5. It shines because it reflects the light of the Sun falling on it.

Show answer
Correct Option: E
Explanation:

This is the correct answer. It shines because it reflects the light of the sun falling on it.

Which of the following statements is/are correct? a. Milky way is a spiral shaped galaxy. b. Satellites are small heavenly bodies that revolve around the Sun. c. The Sun is a huge mass of very hot gases.

  1. Only a

  2. Only b

  3. Only c

  4. Only a and b

  5. Only a and c

Show answer
Correct Option: E
Explanation:

These statements are correct. The Milky way is a spiral shaped galaxy. The Sun is a huge mass of very hot gases. Thus, this is the correct answer.

Which of the following statements is/are correct? a. The gravity on the Moon's surface is six times that of Earth's surface. b. The different shapes/sizes of the Moon visible from Earth are called the phases of Moon. c. A solar eclipse occurs on the day of a New Moon.

  1. Only a

  2. Only b

  3. Only c

  4. Only a and b

  5. Only a and c

Show answer
Correct Option: B
Explanation:

The different shapes/sizes of the Moon visible from Earth are called the phases of the Moon. This is the only correct statement.

A satellite is a body that is continuously revolving around ____________.

  1. a planet

  2. a star

  3. an asteroid

  4. the Sun

  5. a moon

Show answer
Correct Option: A
Explanation:

This is the correct answer because a satellite is an object that revolves around a planet.

Which of the following is/are incorrect? a. The moon takes 27 days and 8 hours to complete one rotation. b. Every 12 and half hours there is a high tide followed by a low tide. c. The artificial satellites are 3000 kms away from the earth.

  1. Only a

  2. Only b

  3. Only c

  4. Only a and b

  5. Only a and c

Show answer
Correct Option: C
Explanation:

This is an incorrect statement. Thus this answer is correct. The artificial satellites are 300 kms, not 3000 kms away from the earth.

Which of the following is not a part of the solar system? a. Sun b. Moons c. Star d. Planets e. Universe

  1. Only a

  2. Only b

  3. Only c

  4. Only d

  5. Only e

Show answer
Correct Option: E
Explanation:

Solar system is a part of the universe. Universe is not a part of the solar system. 

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