National Science Olympiad Forum By SOF Olympiad Trainer - Page 707

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
vacuum is not the correct answer the correct answer is solid

Ans 2:

Class : Class 3
Yes, The correct is vacum

Ans 3:

Class : Class 3
i think it is SOLID

Ans 4:

Class : Class 8
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Ans 5:

Class : Class 8
We cannot hear through vacuum.

Ans 6:

Class : Class 8
wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww

Ans 7:

Class : Class 3
the correct ansswer is vacum

Ans 8: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 9:

Class : Class 3
D [vacuum] is the correct answer.

Ans 10:

Class : Class 3
The correct answer is D

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 4
class:

Ans 2:

Class : Class 8
It should be Noon since there is no shadow

Ans 3:

Class : Class 7

Ans 4:

Class : Class 7
It is morning.

Ans 5:

Class : Class 8
Can you please help me understand this question before this Tuesday.

Ans 6:

Class : Class 5
bad

Ans 7:

Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4
How is the answer coming

Ans 2:

Class : Class 5
how

Ans 3:

Class : Class 5

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 7
The correct answer will be C

Ans 2:

Class : Class 7
no, its b

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
it's b as when she will turn around she will be facing north and her right is east and when she'll turn the east side is on her left

Ans 2:

Class : Class 6
Yes the answer is supposed to be a

Ans 3:

Class : Class 10
if we are facing towards north and we have to go to east we must turn towards right and then go to straight.It means that answer they have given us in wrong.

Ans 4:

Class : Class 6
B is the correct answer.

Ans 5:

Class : Class 9

Ans 6:

Class : Class 4
Yes the red pointer shows north so she has to go towards east and east is towards right of north answer is wrong the answer should be A

Ans 7:

Class : Class 10
kpks, apply mind . it is said that red portion(NORTH) points towards her, which means that she is seeing SOUTH with her eyes. Now , to go eat, if she was seeing north only , she would have to turned right. But as she in facing south, she will have to turn opposite of right i.e - leftso those who are saying ans is a , are mad!!!!!!!

Ans 8:

Class : Class 10
Yes I think it is a as well

Ans 9:

Class : Class 7
The red portion on the compass always signifies the north direction. So the answer given is wrong.

Ans 10:

Class : Class 9

Ans 11:

Class : Class 4
Answer

Ans 12:

Class : Class 4
S0

Ans 13:

Class : Class 8
confusing question

Ans 14:

Class : Class 4

Ans 15:

Class : Class 6
I think the answer provided is right, since the compass(Red Pointer) is pointing towards her i.e, in the north direction, so she is facing south. Hence for her east will be towards left and then go straight.

Ans 16:

Class : Class 4
B

Ans 17:

Class : Class 6
you are wrong ans is bbbbbbbbbbbbbbbbbbbbbbb

Ans 18:

Class : Class 7
EASY MAN ANSWER IS B BECAUSE SHE'S FACING SOUTH AND TO GO EAST YOU TAKE LEFT (IF YOU ARE FACING SOUTH)

Ans 19:

Class : Class 6
@Arunav, please don't say these bad comments... It hurts people who have given the wrong answer.

Ans 20:

Class : Class 9
Confusing question, confusing answers discussed. HEY MASTER ANSWER PLZ HELP US OUT!

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
as the magnetic field near the ends/poles is strong ,the number of iron nails attracted will be more near the poles and less near the centre

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
a is correct answer

Ans 4:

Class : Class 8
a is correct one

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
The letters are rearranged in descending order PENCIL -> PNLIEC ANGLE -> NLGEA

Ans 2:

Class : Class 6
Please explain

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 5
8

Ans 2:

Class : Class 5
a

Ans 3:

Class : Class 1

Ans 4:

Class : Class 2
ans is 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
melting of ice

Ans 2:

Class : Class 9
melting of ice is a physical change but why not others? they are to!

Ans 3:

Class : Class 9

Ans 4:

Class : Class 9
melting of ice

Ans 5:

Class : Class 7

Ans 6:

Class : Class 8
Answer D : All of these

Ans 7:

Class : Class 7
Only melting of ice cube can be again turned to it's original form

Ans 8:

Class : Class 10
Melting of ice

Ans 9:

Class : Class 6
Melting of ice

Ans 10:

Class : Class 8

Ans 11:

Class : Class 5
Class :Easy

Ans 12:

Class : Class 5
ans 6 is use less

Ans 13:

Class : Class 4
MELTING OF ICE IS THE ONLY PHYSICAL CHANGE IN THE GIVEN OPTIONS. OTERS ARE CHEMICAL CHANGE.

Ans 14:

Class : Class 8
they are mads

Ans 15:

Class : Class 9
All of you are correct in one sense but in other sense if we look i think all of these is the answer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
It was forced out of the tank so it went out and the thing is 50cm³ so 400-50 50=400So the answer is 400cm³

Ans 2:

Class : Class 8
you all are coreect

Ans 3:

Class : Class 5
plz dont be angry. The volume of the glass jar will not change. it will remain the same as it is not flexible. so if we compress air of 50cm3 the volume will decrease. But air occupies the available space. So, the correct answer is C.

Ans 4:

Class : Class 6

Ans 5:

Class : Class 8

Ans 6:

Class : Class 8
Ans is c

Ans 7:

Class : Class 5
air can be compressed and it would be 450 cm3 answer is d

Ans 8:

Class : Class 5
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

Ans 9:

Class : Class 4
the question says what is the total volume of AIR in the jar, so as air can be compressed then it should obviously contain 450cm3 and I never heard of glass being flexible in other words the 50cm3 of air in the jar is not going to disappear or fly away so ans is D

Ans 10:

Class : Class 5
Class : easy

Ans 11:

Class : Class 7
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 12:

Class : Class 7
D

Ans 13:

Class : Class 9
yes all please understand sorry if i am wrong it compress the air dear children it wont increase t decreases

Ans 14:

Class : Class 4
Sof pls give us a GOOD explanation. Ans is d.

Ans 15:

Class : Class 5
D

Ans 16:

Class : Class 6
C

Ans 17:

Class : Class 5
The volume of the JAR is 400 cm3 . If we insert air in the jar, the VOLUME OF THE JAR will remain the same as it is mentioned that the JAR IS COMPLETELY MADE OF GLASS, which is not flexible. Therefore, the answer is C .......

Ans 18:

Class : Class 6
the answer is d

Ans 19:

Class : Class 7
d

Ans 20:

Class : Class 7

Ans 21:

Class : Class 6

Ans 22:

Class : Class 1
Ans 16 is wrong

Ans 23:

Class : Class 4
ans is D

Ans 24:

Class : Class 9
Correct answer is C because air can be compressed. You don't need to add 400 and 50 because air can be compressed

Ans 25:

Class : Class 9
It will be D as it says that the jar contains 400 cm3 air and if a 50 cm3 syring filled with air is put into the jar it will become 450 cm3 400 50 = 450 cm3.

Ans 26:

Class : Class 5
the correct answer is c because the volume of the jar is 400cm3

Ans 27:

Class : Class 5
Ok c is answer.

Ans 28:

Class : Class 6
As air can be compressed and takes up the volume of container, its final volume in the jar will be 400 cm3.

Ans 29:

Class : Class 7
hello

Ans 30:

Class : Class 10
air can be compressed .

Ans 31:

Class : Class 5
I thought it would be C but after profound thinking I realised that the answer would be D

Ans 32:

Class : Class 4
d won't be the correct answer. the answer is c as air can be compressed.

Ans 33:

Class : Class 5
D

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