NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1093 - 1097 of 1123

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Question number: 1093

» Physics » Work, Energy & Power

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MCQ▾

Question

A pair of oxen is ploughing a 16m long square field. The force exerted to pull the plough is 160N and the length of the plough is 1m. The work done by the oxen to plough the complete field would be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1094

» Mental Ability

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Question

Find the value of

Choices

Choice (4) Response

a.

b.

1

c.

d.

Passage

Direction: Read the given passage and observe the table carefully. Answer the questions.

Kinjal was doing experiments on Archimedes’ principle. She put a piece of paper, an iron nail and a wooden block in a tub of water and tabulated the results as follows

Table shows the name of object

Table shows the name of object

Name of object

Float/sink

Weight of water displaced

Piece of paper

Floats

Wooden block

Partially floats

Stone

Sinks

Question number: 1095 (1 of 3 Based on Passage) Show Passage

» Physics » Gravitation & Pressure

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Question

She has come to a conclusion by poking with friends. Which of the statements are correct?

(1) A floating object always displaces fluid equal to its weight.

(2) An object floats when its buoyancy is equal to its weight

(3) Sinking objects always displace less fluid than floating objects.

(4) An object sinks when its buoyancy is less than the fluid displaced

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1096 (2 of 3 Based on Passage) Show Passage

» Physics » Gravitation & Pressure

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MCQ▾

Question

She has made some assumption as follows. Which of them are correct?

Choices

Choice (4) Response

a.

Sinking objects always displace more fluid than their weight

b.

A floating object always displaces less fluid than its weight.

c.

Buoyancy is always equal to the weight of the object immersed

d.

An object sinks when its buoyancy is less than its weight

Question number: 1097 (3 of 3 Based on Passage) Show Passage

» Physics » Gravitation & Pressure

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MCQ▾

Question

She has collected some information about buoyancy. Which of them are correct?

Choices

Choice (4) Response

a.

When the buoyant force is equal to the weight of the object immersed, it floats on water

b.

When the weight is equal to the buoyant force, the object sinks.

c.

When an object is immersed in a liquid, the buoyant force experienced on it is equal to the weight of the water displaced.

d.

An object floats when its buoyancy is equal to its weight

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