NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1093 - 1097 of 1128

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Question 1093

Question

MCQ▾

The work done to stop a cricket ball of mass 500gmoving with a velocity of would be

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1094

Question

MCQ▾

The conditions to be satisfied to do work are

(1) A force should act on an object

(2) The object must be displaced

(3) The displacement should be in the direction of force

(4) The displacement should be in the opposite direction

Choices

Choice (4)Response

a.

3 and 4

b.

2 and 3

c.

1 and 3

d.

1 and 2

Question 1095

Question

MCQ▾

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 1096

Question

MCQ▾

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
Name of objectFloat/sinkWeight of water displaced
Piece of paperFloats
Wooden blockPartially floats
StoneSinks

Question 1097 (1 of 3 Based on Passage)

Question

MCQ▾

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

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