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Why does a block of plastic released under water comes up to t
Science
Science

Class 9

NCERT

Publisher:
NCERT
Subject:
Science
1

Chapter 1: Matter in Our Surroundings

9 questions

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2

Chapter 2: Is Matter Around Us Pure?

13 questions

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3

Chapter 3: Atoms and Molecules

16 questions

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4

Chapter 4: Structure of the Atom

19 questions

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5

Chapter 5: The Fundamental Unit of Life

10 questions

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6

Chapter 6: Tissues

15 questions

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7

Chapter 7: Diversity in Living Organisms

6 questions

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8

Chapter 8: Motion

18 questions

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9

Chapter 9: Force and Laws of Motion

29 questions

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10

Chapter 10: Work and Energy

23 questions

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11

Chapter 11: Sound

25 questions

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12

Chapter 12: Why do We Fall Ill?

6 questions

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13

Chapter 13: Natural Resourses

6 questions

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14

Chapter 14: Improvement in Food Resources

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15

Chapter 15: Gravitation

29 questions

Q1
In what direction does the buoyant force on an object immersed in a liquid act?
Q2
Why does a block of plastic released under water comes up to the surface of water?
Q3
The volume of of a substance is . If the density of water is .Find the density of the substance and interpret whether the substance will sink or float?
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Question
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Why does a block of plastic released under water comes up to the surface of water?

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Updated on: Mar 26, 2023

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We know that when a body is fully or partially immersed in a liquid a buoyant force will act on it in the upward direction. When it is more than gravity, it will bring it to the surface of water. Buoyancy force is more than gravity for materials with density smaller than water which holds for plastic and hence it comes up to the surface of water.
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In what direction does the buoyant force on an object immersed in a liquid act?
Q2
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The volume of of a substance is . If the density of water is .Find the density of the substance and interpret whether the substance will sink or float?
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Question Text
Why does a block of plastic released under water comes up to the surface of water?
Updated OnMar 26, 2023
TopicGravitation
SubjectScience
ClassClass 9
Answer TypeText solution:1 Video solution: 4
Upvotes410
Avg. Video Duration6 min