National Science Olympiad Forum By SOF Olympiad Trainer

Yogita Jha from Sarvodaya Sr. Secondary School, Khanpur, Jhajjar

Subject :NSO Class : Class 5

Amit records his karate practice time in this table. How many minutes will Amit practice during week 6 if he continues his pattern?

Week

Minutes of practice

Week 1

    10

Week 2

    20

Week 3

    15

Week 4

    30

Week 5

    25

Week 6

    ?

(A) 40 minutes

(B) 50 minutes

(C) 65 minutes

(D) 90 minutes

agreed.

Ans 1:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad

Class : Class 6

b.50 minutes

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RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT

Subject :NSO Class : Class 7

. A painter leans his back against a painted wall while looking into a 1 m long mirror at the opposite end of a rectangular room as shown in the given figure. How much of the painted wall can he see through the given mirror? (A) 1 m (B) 2 m (C) 6 m (D) 12 m

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Ans 1:

Sanjay Kumar from Vellammal Vidyashram, Chennai

Class : Class 5

ans: b

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Praveen kumar from GD DAV Public school Bhandarkola Deoghar, deoghar

Subject :NSO Class : Class 7

Which of the following appliances does not use an electromagnet?

A Washing machine
B Refrigerator
C Electric heater
D Electric bell

what is the use of electromagnet in a refrigerator

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Ans 1:

Sanjay Kumar from Vellammal Vidyashram, Chennai

Class : Class 5

ans:c

Ans 2:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata

Class : Class 7

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Smeet Vesmawala from J H Ambani Saraswati Vidhyamandir, Surat

Subject :NSO Class : Class 5

Below are given the properties of a material X.

(i) It is shiny.
(ii) It conducts electricity.
(iii) It is not magnetic.

Which of the following can be the material X?

A Silver
BAluminium
CCopper
DAll of these

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Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi

Class : Class 8

Ans 2:

rishi karthik from Bvm Global, chennai

Class : Class 5

D, as all are not magnetic

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Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi

Subject :NSO Class : Class 5

A magnet and a plastic paper clip were placed on a table. Which of the following is most likely true in this case?

AThe magnetic attraction between them will be strongest if the distance between them is more than 5 cm
BThe magnetic attraction between them will be strongest if the distance between them is less than 5 cm
CForce of attraction here is not dependent on distance
DThere will be no force of attraction in this case

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Ans 1:

SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH

Class : Class 8

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Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi

Subject :NSO Class : Class 5

Which type of energy is needed to cut a piece of wood into smaller pieces with a saw?

AHeat Energy
BMechanical Energy
CSound Energy
DLight Energy

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Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi

Subject :NSO Class : Class 5

When two animals live in the same area and depend on the same organism for food, they are

Acompeting
Bdecomposing
Cgerminating
Dhibernating

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Ans 1:

Deepika Goyal from Neerja modi school, Jaipur

Class : Class 7

THE ANSWER IS A. THEY ARE COMPETING

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Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi

Subject :NSO Class : Class 5

Work is...

Aenergy from the sun
Ba force that moves an object
Ca type of simple machine
Da force that pulls you towards the Earth

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Ans 1:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi

Class : Class 7

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

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Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi

Subject :NSO Class : Class 5

Four friends made a statement each about the parts of plant.

Which of them made correct statement?

ARohan only
BShivam, Rohan and Anu only
CRohan and Anu only
DShivam and Anu only

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Ans 1:

INDRANI GHOSH ROY from AMRITA VIDYALAYAM, Durgapur

Class : Class 5

Option C as Rohan and Anu made the correct statements

Ans 2:

INDRANI GHOSH ROY from AMRITA VIDYALAYAM, Durgapur

Class : Class 5

Option C as Rohan and Anu made the correct statements

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Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi

Subject :NSO Class : Class 5

The given graph shows the amount of starch present in three food substances X, Y, and Z.

Which of the following statements is correct regarding the given graph?

AFood item Y can be egg and Z can be potato.
BFood item Z can be sugarcane and Xcan be egg.
CFood item X can be potato and Y can be egg.
DFood item X can be sugarcane and Z can be egg.

Week	Minutes of practice
Week 1	10
Week 2	20
Week 3	15
Week 4	30
Week 5	25
Week 6	?

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