National Science Olympiad Forum By SOF Olympiad Trainer - Page 317

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Subject :NSO    Class : Class 4

Sumeet threw a pebble directly upwards. Which one of the following Pebble statements is correct regarding this?


A Gravity will have no effect on the pebble until it reaches its highest point.
B The pebble will keep going upwards at the same speed until it reaches its highest point.
C The pebble will keep going upwards until gravity ceases to act on it.
D Gravity will act on the pebble both while it is going up and also while it is falling down.


Ans 1: (Master Answer)

Class : Class 1

D

Gravity acts on all objects on earth, whether they are going up or down.


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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

B

Baking is a method of cooking food that uses dry heat. A little or no fat is added in baked goods, but the cooking isn’t done in liquid fats.

Reheating cooked foods is bad as the food looses its nutrient value as well as its taste. Reheating also destroys many heat-sensitive vitamins, such as Vitamin C.

 


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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
i am not able to understand the question

Ans 2:

Class : Class 6
me too

Ans 3:

Class : Class 5
i am not able to understand the question

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Subject :NSO    Class : Class 10

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Subject :NSO    Class : Class 10

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8
you are right

Ans 3: (Master Answer)

Class : Class 1

A

The type of motion which repeats itself after equal interval of time , is called periodic motion.


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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
b

Ans 2:

Class : Class 5
b is the correct answer

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
B

Ans 2:

Class : Class 8
How the answer is (b)???

Ans 3:

Class : Class 8
The volume of the stone is equal to the volume of the water increased in the measuring cylinder. The volume of the stone is calculated from the formula Volume =Mass/Density. In this case, the Mass = 12 g and Density = 3g cm^3 Volume = 12/3 = 4 cm^3 The actual volume of liquid in the measuring cylinder is 20cm^3 . So, the increase in volume will show a new reading of 20cm3+4cm3=24cm^3 hence...answer is (B)

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Subject :NSO    Class : Class 8

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