National Science Olympiad Forum By SOF Olympiad Trainer - Page 143

User Forum

Subject :NSO    Class : Class 7

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
The needle should point towards South pole because the Earth's North Pole is actually the South pole of a bar magnet. Compass needle always points to the geographical North pole.

Ans 2:

Class : Class 6
shall be BBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 3:

Class : Class 6
it should be ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 4:

Class : Class 8

Ans 5:

Class : Class 6

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
The earth's north pole acts like a south pole to the magnet as it attracts the north pole of a magnet (The earth's north pole attracts the north pole of a magnet). This means that the needle of a compass is always the north pole. So, the needle will point to the south pole of the other magnet. In simple words, the North pole of the earth is actually the south pole for a magnet.

Ans 8:

Class : Class 6
Shouldn't the correct answer be (A), since a compass needle ALWAYS points in the North Direction? Pls Help.

Ans 9:

Class : Class 6
But a compass always points to the magnetic north pole, not geographic north pole right?

Post Your Answer

Subject :NSO    Class : Class 8

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class :
Please give more questions like this

Ans 2:

Class : Class 2
12-5 =7 7 2=9answer is 9

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6
9 should be the answer

Ans 5:

Class : Class 6

Ans 6:

Class : Class 7
@ Rachita Gupta-I don't know I'm confused now.

Ans 7:

Class : Class 7

Ans 8:

Class : Class 6

Ans 9:

Class : Class 2
12-5=77*2=14that should be the answer

Ans 10:

Class : Class 8
Can anyone please explain?

Ans 11:

Class : Class 7
answer should be 9

Ans 12:

Class : Class 8
Correct answer is 9m. Already explained in olympaid prep-guide book.

Ans 13:

Class : Class 6
explain

Ans 14:

Class : Class 7
Tis is not in synopsis

Ans 15:

Class : Class 7
Yes austin

Ans 16:

Class : Class 7
Kindly explain.......

Ans 17:

Class : Class 6
Should be ( as 12 2

Ans 18:

Class : Class 7
the distance in the mirror of boy y would be 9m but distance from mirror to boy x would be 9 plus 2= 11

Ans 19:

Class : Class 6
Here it is asking how far away boy Y would APPEAR to be in the mirror to boy X, as in, from boy X's perspective. Y is 12 m away from the MIRROR. He moves 5 m closer12-5=7This is where confusion may set in. A lot of people have added X's distance from the mirror(2 m)7 2=9Here, we are getting the total as 9 m.. However, it is also necessary to add 2 m for the reflected ray to travel to X so that he can see the image.9 2=11Hence, the answer is 11 m.

Ans 20:

Class : Class 8
Does anyone understand this?

Ans 21:

Class : Class 8

Ans 22:

Class : Class 7
it is 9m as 12m - 5m = 7m , 7m 2m = 9m , kindly the correct answer is 9m .

Ans 23:

Class : Class 7
The answer should be 9

Ans 24:

Class : Class 6

Ans 25:

Class : Class 6
How 11cm

Ans 26:

Class : Class 6

Ans 27:

Class : Class 7
@Rachita Gupta- They are asking how far away boy-y would appear to be from BOY-X not the mirror so I'm guessing it should be 9m.

Ans 28:

Class : Class 6
The answer should be 9m as 12 2=14-5=9

Ans 29:

Class : Class 6
please explain

Ans 30:

Class : Class 7
It's nine.

Ans 31:

Class : Class 6

Ans 32:

Class : Class 8
Please explain

Ans 33:

Class : Class 6
answer is 9

Post Your Answer

Subject :NSO    Class : Class 2

Ans 1:

Class : Class 5
It is so easy

Post Your Answer

Subject :NSO    Class : Class 10

Post Your Answer

Subject :NSO    Class : Class 8

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 2

Post Your Answer