National Science Olympiad Forum By SOF Olympiad Trainer - Page 557

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
they aren't giving the answer and the solution same in some papers

Ans 2:

Class : Class 9
please explain. your solution doesn't match the correct answer provided by you.

Ans 3:

Class : Class 3
ayush u are right!!!!!!!!!!!!!!!

Ans 4:

Class : Class 9

Ans 5:

Class : Class 7
yes , its option C

Ans 6:

Class : Class 5

Ans 7:

Class : Class 7

Ans 8:

Class : Class 6
NA

Ans 9:

Class : Class 9
The correct is NSN

Ans 10:

Class : Class 4

Ans 11:

Class : Class 7
Given correct answer and explanation do not match...please rectify...

Ans 12:

Class : Class 8
Answer and solution are completely different, they are not matching!The solution is correct, but their ans is wrong

Ans 13:

Class : Class 4
What is this? Answer and solution are completely different, they are not matching!

Ans 14:

Class : Class 10
clear objection

Ans 15:

Class : Class 9
yes !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 16:

Class : Class 7
There is no option only for the answer they had provided us with, gave the correct explanation but the need to correct the answer as well.

Ans 17:

Class : Class 6
The option selected here is wrong.

Ans 18:

Class : Class 3

Ans 19:

Class : Class 6
The answer does not match with the solution. There should be a change in the answer.

Ans 20:

Class : Class 9
Pls rectify.

Ans 21:

Class : Class 3
correct option is C, not B. Please make correction.

Ans 22:

Class : Class 6

Ans 23:

Class : Class 6
Although the explanation is correct, it does not match the answer

Ans 24:

Class : Class 8
The ans is not matching!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 25:

Class : Class 10

Ans 26:

Class : Class 7
why arent they changing the answer

Ans 27:

Class : Class 9
YES , their answer is not matching with their solution !!

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
the answer is wrong

Ans 2:

Class : Class 6

Ans 3:

Class :
The answer has to be 0.2 seconds(5/25). Pls correct

Ans 4:

Class : Class 7
The time taken to complete one oscillation - a left swing and a right swing - is called the time period (T); it is measured in seconds.A swing takes 5 seconds to complete 25 oscillations. That means it would take 1 second to complete 25 ÷ 5 = 5 oscillations. That also means it would take 1 ÷ 5 = 0.2 seconds to complete 1 oscillation.So, the time period of the swing is 0.2 seconds. Hence, the right answer is Option C.

Ans 5:

Class : Class 10
answer is wrong it should be 0.2 s

Ans 6:

Class :
The answer should be 0.2 s

Ans 7:

Class : Class 7
I THINK IT COMPLETES 25 OSCILLATIONS IN 5s

Ans 8:

Class : Class 8
I think this answer is wrong. It should be 0.2 seconds, according to the definition of a Time Period in oscillatory motion.

Ans 9:

Class : Class 7
The answer is wrong. It is 0.2

Ans 10:

Class :
Answer is wrong

Ans 11:

Class : Class 8
please explain the answer

Ans 12:

Class : Class 10
According to definition - answer would be 0.2 s

Ans 13:

Class : Class 8

Ans 14:

Class : Class 8
According to definition - answer would be 0.2 s

Ans 15:

Class : Class 7

Ans 16:

Class : Class 8
The swing completes 25 oscillations in 5 seconds So, It will complete 1 oscillation in 5/25 seconds = 0.2 secondsSo, the time period of the swing is 0.2 seconds. Hence, the right answer is Option C.

Ans 17:

Class : Class 7
The answer seems to be wrong. 5 seconds to complete 25 oscillations. That means for one oscillation it is 5/25 = 0.2 seconds. 'Period' usually means one complete oscillation that is 0.2 seconds and that is not given.

Ans 18:

Class : Class 10
the answer is wrong , it should be 0.2s. please kindly provide the solution to this question.

Ans 19:

Class :
wrong answer. should be 0.2s

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
option a

Ans 2:

Class : Class 8
option b is the correct answer

Ans 3:

Class : Class 7

Ans 4:

Class : Class 9

Ans 5:

Class :
Option B

Ans 6:

Class : Class 9
i checked in google. ans is a

Ans 7:

Class :

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
but how?

Ans 2:

Class : Class 5
THE MOON IS NOT STRAIGHT TO THE EARTH. MOON HAS SLIGHT SLANTING REVOLUTION. THAT IS WHY WE HAVE DIFFERENT PHASES OF THE MOON. IF THE MOON IS AT THE POSITION OF..... SUN---EARTH---MOON.......SO THAT WILL BE FULL MOON. FULL MOON IS GIVENN AT OPTION B. SO MOST OF US LIKE ME DID B BUT IT IS SHOWING C AS THE CORRECT ANSWER. BUT AS I THINK THAT EVERYTHING HAS A REASON.1. THE SOLUTION IS THE MEANINGFUL WAY IT IS GOOD. BUT IF YOU OPPOSE THIS, SO 2. THAT THE CHART IS SHOWING THAT....... SUN-----EARTH-----MOON. SO ACCORDING TO THE CHART, IT IS A LUNAR ECLIPSE IN WHICH THE MOON IS COMPLETLY BLACK. SO OPTION C HAS A REASON. SHARE YOUR IDEAS ALSO.

Ans 3:

Class : Class 5
This is absolutely incorrect. SOF should verify such answers. The question is about the phase of the moon. Even if it is a lunar eclipse it falls on a full moon day. The answer is B

Ans 4:

Class :
only c

Ans 5:

Class : Class 6
Moon will get no sunlight.THIS ISN’T POSSIBLE!!!!!

Ans 6:

Class : Class 6
Yes!I checked it on Google!IT IS FULL MOON!!!!!!????

Ans 7:

Class : Class 7
It is a full moon and I had enough of your mistakes SOF now, I am going to beat you people.

Ans 8:

Class : Class 8

Ans 9:

Class : Class 7
if the answer is c, then they would have mentioned that it is a lunar eclipse. so it should be b

Ans 10:

Class : Class 5
This is wrong i thinkThe answer should be C

Ans 11:

Class : Class 1
I think that c is correct as the moon is behind the earth , so there will be no light reaching the moon . Thus, it will be new moon .

Ans 12:

Class : Class 5

Ans 13:

Class : Class 4
b is answer

Ans 14:

Class : Class 5
it is b

Ans 15:

Class : Class 5
The answer is b not c

Ans 16:

Class : Class 9
How come it is C ? This is insane!!!

Ans 17:

Class : Class 7
It is showing C as the answer to this question

Ans 18:

Class : Class 6
b) IT SHD BE FULLLLLLLLLLLLLL MOOOOOOOOOOOOOON!?!??!

Ans 19:

Class : Class 5
Full moon occurs when light is spread all over the surface of the moon...but in the picture the moon is blocked by earth and the moon will remain dark.Hence,the answer is (c) new moon

Ans 20:

Class : Class 6
how is this possible

Ans 21:

Class : Class 10

Ans 22:

Class : Class 5

Ans 23:

Class : Class 7
moon does not have its own light it reflects of sun and as it is completely blocked by earth the suns light does not reflect and we do not see any phase of the moon .hence ans is c

Ans 24:

Class : Class 9
c

Ans 25:

Class : Class 5
IT SHOULD NOT BE C! B IS THE RIGHT ANSWER. IF SUN EARTH MOON= FULL MOON. IF SUN MOON EARTH = NEW MOON. .

Ans 26:

Class : Class 8

Ans 27:

Class : Class 3
C

Ans 28:

Class : Class 8
It will cause full moon ???

Ans 29:

Class : Class 5
According to any phases of the moon diagram, a full moon will be behind the Earth. Even lunar eclipse will be on a full moon day . New moons position will be the opposite of a full moon,i.e. between the earth and sun

Ans 30:

Class : Class 4

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class :
r is slightly above them so it has less pressure and there is a block above p so the answer is (C)

Ans 3:

Class : Class 8
I agree, I feel they are different

Ans 4:

Class : Class 9
doubtthey aren't at the same depthlook carefully sof

Ans 5:

Class : Class 10
yes they aren't at same depth

Ans 6:

Class : Class 8
The three dots are not at the same depth. P and Q are at the same depth, but R is slightly above both of them.

Ans 7:

Class : Class 10
R is at a slightly higher depth

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5

Ans 2:

Class : Class 8
THE ANSWER IS B

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Subject :NSO    Class : Class 5

Ans 1:

Class :
C

Ans 2:

Class : Class 8
correct answer is c graavitional pull by earth

Ans 3:

Class : Class 5
Gravitational pull of the moon is the correct answer.

Ans 4:

Class : Class 7

Ans 5:

Class : Class 7
an

Ans 6:

Class : Class 7
The answer is C

Ans 7:

Class : Class 7
C

Ans 8:

Class : Class 5
My answer is C. I have written it wrong as A

Ans 9:

Class : Class 7
c

Ans 10:

Class : Class 9
C for cat

Ans 11:

Class : Class 7
C

Ans 12:

Class : Class 6
C

Ans 13:

Class : Class 5
the tide happens due to moon's gravity

Ans 14:

Class : Class 7

Ans 15:

Class : Class 7
The answer is C because tides are caused due to Gravitational pull of moon

Ans 16:

Class : Class 1
Tides are caused by the gravitational pull of the moon

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
both c and d are the same ...................... how can they show option d is stapler and seesaw.......

Ans 2:

Class : Class 8
option D isn't having stapler and seesaw

Ans 3:

Class : Class 5

Ans 4:

Class : Class 9
C AND D ARE THE SAME YOU ARE RIGHT

Ans 5:

Class : Class 6
i am confused i am confused to opt between C

Ans 6:

Class : Class 9
YES

Ans 7:

Class : Class 3
you are right both the options are the same

Ans 8:

Class : Class 6
option c

Ans 9:

Class : Class 6

Ans 10:

Class : Class 6

Ans 11:

Class : Class 10
OPTION C AND OPTION D ARE SAME .SO IT CAN BE C ALSO .THE QUESTION IS WRONG .THE QUESTION NEEDS CORRECTION ........

Ans 12:

Class :
What is the difference between option C and D

Ans 13:

Class : Class 8
options c and D are same. question needs correction

Ans 14:

Class : Class 8
????????option C and D?

Ans 15:

Class : Class 7
Master answer needed!

Ans 16:

Class : Class 8

Ans 17:

Class : Class 6
both option c and d are the same.

Ans 18:

Class : Class 4

Ans 19:

Class : Class 6

Ans 20:

Class : Class 7

Ans 21:

Class : Class 3
C and d are same………

Ans 22:

Class : Class 6
I mean wwwhhhaaattttt???? C AND D ARE SSSAAAMMMEEE!!!!

Ans 23:

Class : Class 8

Ans 24:

Class : Class 2

Ans 25:

Class : Class 9

Ans 26:

Class : Class 7
This question make absolutely no sense.

Ans 27:

Class : Class 7

Ans 28:

Class : Class 5
fooliesh

Ans 29:

Class : Class 7
There's no difference between the option C and D .

Ans 30:

Class : Class 6
option c

Ans 31:

Class : Class 7
ya! option C and D are the SAME!

Ans 32:

Class : Class 9
option d has the same answer as option c

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