9th Physics Chapter 9 MCQs
9th Physics Chapter 9 MCQs.
Tick the correct answer.
9.1 Physics is a branch of:
(a) social science
(b) life science
(c) physical science
(d) biological science
Correct option is (c)
Physics is a branch of physical science
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9.2 Which branch of science plays vital role in technology and engineering?
(a) Biology
(b) Chemistry
(c) Geology
(d) Physics
Correct option is (d)
Physics plays vital role in technology and engineering
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9.3 Automobile technology is based on:
(a) acoustics
(b) electromagnetism
(c) optics
(d) thermodynamics
Correct option is (d)
Automobile technology is based on thermodynamics
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9.4 A user friendly software application of smart phone use:
(a) laser technology
(b) information technology
(c) medical technology
(d) electric technology
Correct option is (b)
A user friendly software application of smart phone uses information technology
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9.5 The working of refrigeration and air conditioning involves:
(a) electromagnetism
(b) mechanics
(c) climate science
(d) thermodynamics
Correct option is (d)
The working of refrigeration and air conditioning involve thermodynamics
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9.6 What is the ultimate truth of a science method?
(a) Hypothesis
(b) Experimentation
(c) Theory
(d) Law
Correct option is (d)
The ultimate truth of a science method is law
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9.7 The statement ” If I do not study for this test, then I will not get good grade” is an example of:
(a) theory
(b) observation
(c) prediction
(d) law
Correct option is (c)
The statement ” If I do not study for this test, then I will not get good grade” is an example of prediction
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9.8 Which of the following are methods of investigation?
(a) Observation
(b) Experimentation
(c) Research
(d) All of these
Correct option is (d)
Observation experimentation and research are methods of investigation
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9.9 A hypothesis:
(a) may or may not be testable
(b) is supported by evidence
(c) is a possible answer to a question
(d) all of these
Correct option is (c)
A hypothesis is a possible answer to a question
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9.10 A graph of an organized data is an example of:
(a) collecting data
(b) forming a hypothesis
(c) asking question
(d) analyzing data
Correct option is (d)
A graph of an organized data is an example of analyzing data
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9.11 The colour of a door is brown. It is an example of:
(a) observation
(b) hypothesis
(c) prediction
(d) law
Correct option is (a)
The colour of a door is brown is an example of observation
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Some important links are given below
