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What is the crucial role of Physics in Science, Technology and Society?
What is the crucial role of Physics in Science, Technology and Society?
- Exploring the history of scientific discoveries
- Studying the behavior of living organisms
- Developing mathematical equations for complex systems
- Providing a fundamental understanding of natural phenomena and technological advancements (correct)
What do physical quantities in Science consist of?
What do physical quantities in Science consist of?
- Numerical magnitude and a variable
- Symbolic representation and a unit
- Symbolic representation and a variable
- Numerical magnitude and a unit (correct)
What is the purpose of interconverting prefixes and their symbols for base and derived units?
What is the purpose of interconverting prefixes and their symbols for base and derived units?
- To indicate multiples and sub-multiples of units (correct)
- To standardize unit representations
- To establish new measurement standards
- To simplify mathematical calculations
What is the significance of using significant figures for recording and stating results?
What is the significance of using significant figures for recording and stating results?
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What is the purpose of Vernier Callipers and screw gauge for measuring length?
What is the purpose of Vernier Callipers and screw gauge for measuring length?
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Study Notes
Role of Physics
- Physics is crucial in Science, Technology, and Society as it provides fundamental understanding of natural phenomena, driving innovation and development.
Physical Quantities
- Physical quantities in Science consist of a numerical magnitude and a unit of measurement.
Units and Prefixes
- Interconverting prefixes and their symbols for base and derived units allows for efficient and accurate expression of physical quantities.
- This facilitates comparison and calculation of different physical quantities.
Significant Figures
- Significant figures are essential for recording and stating results as they ensure accuracy and reliability of scientific data.
- Significance figures enable estimation of uncertainty in measurements.
Measurement Tools
Vernier Callipers
- Vernier Callipers are used to measure length with high precision, typically up to 0.1 mm.
Screw Gauge
- Screw Gauge is used to measure length with high precision, typically up to 0.01 mm.
- Screw Gauge is particularly useful for measuring small lengths and diameters of objects.
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