National Science Olympiad Forum By SOF Olympiad Trainer - Page 575

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
The correct option is option B. Work is a force that moves an object.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Option C as Rohan and Anu made the correct statements

Ans 2:

Class : Class 5
Option C as Rohan and Anu made the correct statements

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8
A

Ans 3:

Class : Class 7

Ans 4:

Class : Class 8
A

Ans 5:

Class : Class 5
ohh

Ans 6:

Class : Class 3
The answer is A

Ans 7:

Class : Class 6

Ans 8:

Class : Class 3
D

Ans 9:

Class : Class 3
The answer is A.

Ans 10:

Class : Class 6

Ans 11:

Class : Class 4
d

Ans 12:

Class : Class 7

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Subject :NSO    Class : Class 7

An electric kiln has a device in it to prevent the kiln from getting too hot. The metals in the bimetallic strips expand at different rates and bend when heated. The contact points move apart and electric current stops flowing.

This device works when, _______.

AQ expands more than R, and P expands more than S
BR expands more than S, and Q expands more than P
CP expands more than Q, and R expands more than S
DP expands more than R, and S expands more than Q


Can someone explain this question with diagram?

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
option B because of expansion the contact point get diverted

Ans 3:

Class : Class 8
option B because of expansion the contact point get diverted

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
not all physical changes are reversible

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
B

Ans 2:

Class : Class 9
b

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
d

Ans 2:

Class : Class 5
d

Ans 3:

Class : Class 7
D

Ans 4: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
Could somebody explain the meaning of the question.

Ans 2:

Class : Class 4
A is write suvanjot check solution

Ans 3:

Class : Class 7
A IS RIGHT ANSWER

Ans 4:

Class : Class 5
Roshni is right

Ans 5:

Class : Class 9
Please tell the answer of this question

Ans 6:

Class : Class 4
B SHOULD BE THE RIGHT ANSWER BECAUSE WE ARE PLOTTING NO. OF DEATHS AND NOT NO. OF ORGANISMS...SO AS THE AMOUNT OF REFUSE INCREASES THE NO. OF DEATHS WILL INCREASE TILL ALL THE ORGANISMS DIE AND THUS THE DEATHS DECEASE

Ans 7:

Class : Class 4

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Subject :NSO    Class : Class 4

Harshit wanted to find out among the four locations - playground, science laboratory, school garden and the bus stop outside his school - which is the most polluted. He placed four glass tiles smeared with petroleum jelly at the four locations for the same period of time for one day and recorded his observation. However, his teacher told him that his experiment was not reliable because he did not ________.

AWet the glass tiles
BUse tiles made of different materials
CRepeat the experiment over a few days
DExamine the tiles with hand lens


c

Ans 1:

Class : Class 4
how????????????

Ans 2: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 3:

Class : Class 8

Ans 4:

Class : Class 7
C

Ans 5:

Class : Class 4

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