NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1121 - 1123 of 1123

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Question number: 1121

» Chemistry » Structure of the Atom

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MCQ▾

Question

If an atom P exists in the form of two isotopes X and Y with atomic number 8 and mass numbers 16 and 18 respectively. In the sample, X is 90 % and Y is 10%. The average atomic mass of the sample is

Choices

Choice (4) Response

a.

b.

c.

17μ

d.

Question number: 1122

» Physics » Work, Energy & Power

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Question

A boy of mass does push-ups by lifting his body to a height of . How many times he has to do push ups to get energy to lift a luggage of mass to third floor of his flat, if the height is ?

Choices

Choice (4) Response

a.

b.

c.

d.

Passage

Direction: Observe the figure carefully and answer the question

The image of applied force on the objects

The Image of Applied Force on the Objects

The image of applied force on the objects

Question number: 1123 (2 of 2 Based on Passage) Show Passage

» Physics » Gravitation & Pressure

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MCQ▾

Question

The effect of the force on the body would be

Choices

Choice (4) Response

a.

Changes the direction of movement

b.

Accelerate the movement

c.

Decelerate the movement

d.

Stops the movement

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