Class 9 Physics · Chapter 9 · Test 2
Scientific Method and Laws
52 MCQs
52 questions · 40 min · 52 marks
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Sample questions
The first 5 of 52. Try each one, then tap to see the answer.
Question 1
What is the scientific method?
- AA systematic approach to investigating problems and natural phenomena
- BA method of accepting every claim without testing
- CA way of avoiding observations
- DA method based only on personal opinions
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Answer: A
The textbook defines the scientific method as a systematic approach to investigating issues and solving problems concerning the natural and physical world.
Question 2
What is the first step in the scientific method described in the textbook?
- AIdentifying an issue or problem
- BFormulating a law immediately
- CRejecting every hypothesis
- DPublishing a conclusion before collecting data
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Answer: A
The textbook lists identification of an issue or problem as the first step.
Question 3
What is the purpose of observation in scientific investigation?
- ATo collect information about natural processes
- BTo guarantee that a hypothesis is always correct
- CTo replace all experiments
- DTo formulate a law without evidence
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Answer: A
Observation allows scientists to gather information and data about phenomena.
Question 4
Which step usually follows gathering information from observations?
- AProposing a hypothesis
- BFormulating a final law immediately
- CRejecting all evidence
- DStopping the investigation
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Answer: A
The textbook describes a hypothesis as a proposed explanation based on collected information.
Question 5
A hypothesis is best described as:
- AA proposed explanation or guess that can be tested
- BA conclusion that can never change
- CA measurement instrument
- DA statement that requires no evidence
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Answer: A
The textbook describes a hypothesis as a proposed explanation developed from observations or experiments.
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