INSIGHTS STATIC QUIZ 2020 - 21
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- Question 1 of 5
1. Question
Consider the following statements regarding Microgravity.
- Microgravity is the condition in which people or objects appear to be weightless.
- It occurs when gravitation force around is zero or when objects are in a state of free fall.
Which of the above statements is/are correct?
CorrectSolution: a)
Microgravity is the condition in which people or objects appear to be weightless. This occurs when gravitation force around is weak (but not zero) or when objects are in a state of free fall (as in a satellite).
For example, astronauts can move equipment weighing hundreds of pounds with their fingertips due to microgravity.
IncorrectSolution: a)
Microgravity is the condition in which people or objects appear to be weightless. This occurs when gravitation force around is weak (but not zero) or when objects are in a state of free fall (as in a satellite).
For example, astronauts can move equipment weighing hundreds of pounds with their fingertips due to microgravity.
- Question 2 of 5
2. Question
Consider the following statements.
- A black hole cannot be seen because of the strong gravity that is pulling all of the light into the black hole’s centre.
- If a star is orbiting a certain point in space, scientists can study the star’s motion to find out if it is orbiting a black hole.
Which of the above statements is/are correct?
CorrectSolution: c)
A black hole cannot be seen because of the strong gravity that is pulling all of the light into the black hole’s centre.
However, scientists can see the effects of its strong gravity on the stars and gases around it.
If a star is orbiting a certain point in space, scientists can study the star’s motion to find out if it is orbiting a black hole.
IncorrectSolution: c)
A black hole cannot be seen because of the strong gravity that is pulling all of the light into the black hole’s centre.
However, scientists can see the effects of its strong gravity on the stars and gases around it.
If a star is orbiting a certain point in space, scientists can study the star’s motion to find out if it is orbiting a black hole.
- Question 3 of 5
3. Question
The average temperature roughly decreases from the equator towards the poles in the same manner as that of distribution of
CorrectSolution: d)
An important factor that influences the distribution of temperature is insolation. Insolation is the incoming solar energy intercepted by the earth.
The amount of insolation decreases from the equator towards the poles. Therefore, the temperature decreases in the same manner.
IncorrectSolution: d)
An important factor that influences the distribution of temperature is insolation. Insolation is the incoming solar energy intercepted by the earth.
The amount of insolation decreases from the equator towards the poles. Therefore, the temperature decreases in the same manner.
- Question 4 of 5
4. Question
Consider the following statements regarding Pulsars.
- Pulsars are non-magnetized, rotating neutron stars that contain more mass than that of the sun.
- Scientists are studying pulsars in search for planets beyond Earth’s solar system and measure cosmic distance.
Which of the above statements is/are correct?
CorrectSolution: b)
Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation.
They are spherical, compact objects but contain more mass than that of the sun.
Scientists are using pulsars to study extreme states of matter, search for planets beyond Earth’s solar system and measure cosmic distance.
IncorrectSolution: b)
Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation.
They are spherical, compact objects but contain more mass than that of the sun.
Scientists are using pulsars to study extreme states of matter, search for planets beyond Earth’s solar system and measure cosmic distance.
- Question 5 of 5
5. Question
Even when Earth gets nearest to the Sun, the effects of this increased solar insolation are not felt on a large scale on earth. This can be due to
- Circulation of ocean currents
- Redistribution of heat through trade winds
Select the correct answer code:
CorrectSolution: c)
Distribution of land and sea, heat transfer by way of sea and land breezes etc redistribute the increased insolation so that the effects are not felt on a large scale.
IncorrectSolution: c)
Distribution of land and sea, heat transfer by way of sea and land breezes etc redistribute the increased insolation so that the effects are not felt on a large scale.
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