You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 5 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score
Your score
Categories
Not categorized0%
Your result has been entered into leaderboard
Loading
1
2
3
4
5
Answered
Review
Question 1 of 5
1. Question
2 points
Consider the following about solar flares and coronal mass ejections ( CMEs ) :
1. A CME can jostle Earth’s magnetic fields creating currents that drive particles down towards Earth’s poles .
2. Both eruptions are created when the motion of the Sun’s interior contorts its own magnetic fields.
3. While solar flares involve huge explosions of energy , CMEs involve formation of energy suctions in space that consume energy from its surroundings
4. CMEs travel at the speed of light , solar flares do not .
Correct
Ans( a )
Incorrect
Ans( a )
Question 2 of 5
2. Question
2 points
Earth’s orbital velocity around the Sun varies with
Correct
Ans D
As the Earth moves close to the Sun , its orbital velocity increases , and decreases as it goes farther from the Sun.
Based on Kepler’s three laws of motion ( 9th standard Physics ) , you will know that in an elliptical orbit , a body will trace equal orbital area in equal intervals of time . So , depending on the shape of the orbit , the velocity of Earth will vary .
Incorrect
Ans D
As the Earth moves close to the Sun , its orbital velocity increases , and decreases as it goes farther from the Sun.
Based on Kepler’s three laws of motion ( 9th standard Physics ) , you will know that in an elliptical orbit , a body will trace equal orbital area in equal intervals of time . So , depending on the shape of the orbit , the velocity of Earth will vary .
Question 3 of 5
3. Question
2 points
Consider the following statements :
1. The gravitation force ( g ) is not the same at different latitudes on the surface of the Earth .
2. Uneven distribution of mass of material within the Earth influences the gravitational force as experienced within the Earth .
Which of the above is / are correct?
Correct
Ans ( c )
• Justification :
• Statement 1 : It is greater near the poles and less at the equator . This is because of the distance from the centre at the equator being greater than that at the poles .
• Statement 2 : Distribution of mass affects the effective mass , that is , applying the gravitational force . Since not all earthly mass has same density , there is bound to be a difference in the way gravitational force is experienced within the Earth .
Incorrect
Ans ( c )
• Justification :
• Statement 1 : It is greater near the poles and less at the equator . This is because of the distance from the centre at the equator being greater than that at the poles .
• Statement 2 : Distribution of mass affects the effective mass , that is , applying the gravitational force . Since not all earthly mass has same density , there is bound to be a difference in the way gravitational force is experienced within the Earth .
Question 4 of 5
4. Question
2 points
Which of the following sources helps in studying about the interior of the Earth ?
Meteors that at times reach the Earth
Gravitation
Magnetic field
Seismic activity
Select the correct answer using the codes the below :
