Test: Archimedes Principle (Old Syllabus)

# Test: Archimedes Principle (Old Syllabus) - Class 9

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## 15 Questions MCQ Test Science Class 9 - Test: Archimedes Principle (Old Syllabus)

Test: Archimedes Principle (Old Syllabus) for Class 9 2023 is part of Science Class 9 preparation. The Test: Archimedes Principle (Old Syllabus) questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Archimedes Principle (Old Syllabus) MCQs are made for Class 9 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Archimedes Principle (Old Syllabus) below.
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Test: Archimedes Principle (Old Syllabus) - Question 1

### An object weighing 5 N in air, weighs 4.5 N a liquid. The buoyant force experienced by the object is

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 1

The buoyant force experienced by the object is:- The buoyant force is in opposite direction to the weight of the object. Hence, if the object weighs 4.5 N in liquid then 0.5 N buoyant force will act on the object.

Test: Archimedes Principle (Old Syllabus) - Question 2

### The same body is immersed in two liquids A and B in succession. The extent to which the body sinks in liquid B is less then in liquid A. What are the conclusions that could be derived from such an observation

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 2

The density of liquid B is more than the liquid A as more upthrust is exerted on the body in liquid B and hence it sinks less.

Test: Archimedes Principle (Old Syllabus) - Question 3

### A sample of milk diluted with water has density 1036kgm−3. if pure milk has a density 1080kgm−3 what is the percentage of water by volume in milk ?

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 3

Test: Archimedes Principle (Old Syllabus) - Question 4

A student lowers a body in a liquid filled in a container. He finds that there is a maximum apparent loss in weight of the body when

Test: Archimedes Principle (Old Syllabus) - Question 5

The density of copper is 9 g/cm3. Then the volume of 90 g copper is​

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 5

Density of copper = 9 gm/cm^3
Mass of copper  =  90 g
We know;  Density =  mass / volume
⇒ volume  = mass / density
⇒    90 / 9
⇒ Volume  = 10 cm3

Test: Archimedes Principle (Old Syllabus) - Question 6

The sea water is denser than fresh water due to

Test: Archimedes Principle (Old Syllabus) - Question 7

Instrument used for measuring the density or relative density of liquids is known as

Test: Archimedes Principle (Old Syllabus) - Question 8

A packet of 400 g and volume 200 cm3 is put in a water tank. The relative density of packet is

Test: Archimedes Principle (Old Syllabus) - Question 9

An object of weight 500 N is floating in a liquid. The magnitude of buoyant force acting on it is

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 9
As we know that the buoyant force acting on a floating body in a liquid is equal to the weight of the floating body,
Buoyant force acting on the body of weight 200N floating in  liquid = 200N
Test: Archimedes Principle (Old Syllabus) - Question 10

If relative density is 11.3, the density of the substance in SI units is

Test: Archimedes Principle (Old Syllabus) - Question 11

If the density of the object placed in a liquid is equal to the density of the liquid, the object will:

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 11

If the density of the object placed in liquid is equal to the density of the liquid, then :- It would float submerged in the liquid. Some part of the solid would be above the liquid surface and part would be inside the liquid surface.

Test: Archimedes Principle (Old Syllabus) - Question 12

The mass of water displaced by a solid of mass 400 g and volume 150 cm3 is​

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 12
Test: Archimedes Principle (Old Syllabus) - Question 13

Three objects A, B, and C having density 1.12 g cm-3, 0.92 g cm-3 and 2.02 g cm-3 respectively, are placed in a water tank. Which object will sink in water tank?​

Test: Archimedes Principle (Old Syllabus) - Question 14

When a solid body is fully immersed in a liquid, the volume of the displaced liquid is:

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 14
According to Archimedes’ principle, the volume of liquid displaced is equal to the volume of the solid.
Test: Archimedes Principle (Old Syllabus) - Question 15

If we want to determine the volume of a solid by immersing it in water, the solid should be

Detailed Solution for Test: Archimedes Principle (Old Syllabus) - Question 15
It should be heavier than water and insoluble in it, so that it sinks and displaces the water and also it does not mix in the water.

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## Science Class 9

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