Physics can be defined as a branch of science based on:
Correct answer: B. Experimental observation and quantitative measurement
- A. Observation and analysis of facts
- B. Experimental observation and quantitative measurement
- C. Mathematical calculation and interpretation
- D. Replication and verification of known facts
Explanation
In summary, option B ("Experimental observation and quantitative measurement") aligns most closely with the essence of experimental physics. It emphasizes the significance of conducting experiments, making observations, and quantitatively measuring physical phenomena to gather empirical data, which forms the foundation for theories and principles in physics. The other options, while important in their own right, are not as directly related to the core idea of experimental observation and quantitative measurement in the context of physics.
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About Measurements
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
Practise Measurements
262 free Measurements MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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