National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 7

A furniture truck is moving along a plane road with constant velocity. An object drops from the midpoint of the ceiling inside the truck. What will be the position of object after landing on the floor?

A One cannot say without knowing the velocity of the truck.
B Exactly on the point below the mid-point of the ceiling.
C Ahead of the point exactly below the mid-point of the ceiling.
D Behind the point exactly below the mid-point of the ceiling.


Ans 1:

Class : Class 5

Ans 2:

Class : Class 5

Ans 3:

Class : Class 8
option b .......

Ans 4:

Class : Class 7
the answer is D as the position of the truck will change and the object will be there . I got it correct

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7
The answer should be D as the truck is in motion

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
D

Ans 2:

Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
option c

Ans 2:

Class : Class 5

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
answer is B

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
B

Ans 4:

Class : Class 3
b

Ans 5:

Class : Class 3
C

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
C

Ans 2:

Class : Class 4
c

Post Your Answer

Subject :NSO    Class : Class 5

Astrodog went on an expedition to the Moon some years ago. The space dog died on the Moon and was left behind by the astronauts when they returned to Earth. The following year, another group of astronauts landed on the Moon and were surprised to find that Astrodog's body was not decomposed.
This is because decomposers cannot live on the Moon since the _______.

A Moon has no air and water
B Moon is not as hot as the Earth
C Moon is much smaller than Earth
D Moon's gravitational pull is weaker than the Earth's gravitational pull


Ans 1:

Class : Class 5
a

Ans 2:

Class : Class 5
a

Ans 3:

Class : Class 5
Option a is correct

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Answer: The answer could be option B. Explanation: Assume the solar system as a circle, the sun as the radius( center) and the planets' orbits as the circumference( circle boundary). Mercury, with the least circumference length, revolves less distance than any other planet. This also means that it will take the least time to revolve around the Sun( 88 Earth Days ). Neptune, being the farthest of all planets, revolves more distance compared to others. Neptune takes the highest time to revolve( 165 Earth Years).[ Viewing the solar system Diagram would help.] Therefore, less the distance from the Sun, less the time taken to revolve; more the distance from the Sun, more the time taken to revolve.

Post Your Answer

Subject :NSO    Class : Class 3

When astronauts are out in the space, either they communicate using radios or talk to one another by touching their helmets. Which of the following statements holds true about communication in space?
1.Sound is a vibration that cannot travel through vacuum.
2.Sound vibrations can travel through the material of the helmet to the other.
3.Radiowaves can travel through vacuum.
4.Helmets have speakers built in them which produce sounds when touched.

A4 only
B2 and 3
C1, 2 and 3
D1 and 4


Ans 1:

Class : Class 3
D

Ans 2:

Class : Class 4
C

Ans 3:

Class : Class 3
ANS A is correct

Ans 4:

Class : Class 3
A

Post Your Answer

Subject :NSO    Class : Class 8

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer