Measurement and Error in Physics

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Questions and Answers

Which of the following is a base SI unit of measurement?

Joule
Cubic meter
Decimal
Kilogram (correct)

What is the symbol for the base quantity of time in the SI system?

min
T
hr
s (correct)

Which derived unit represents acceleration in the SI system?

kg/m
m²/s²
m/s
m/s² (correct)

What is the area derived unit in SI and its symbol?

<p>Square meter, m² (D)</p> Signup and view all the answers

Which of the following is NOT one of the seven base quantities in the SI system?

<p>Force (B)</p> Signup and view all the answers

Flashcards

SI Unit

The International System of Units, a standardized system of measurement widely used in science.

Base Quantity

Fundamental measurements like length, mass, and time that define other derived quantities.

Derived Unit

Units created from combinations of base units to measure more complex quantities.

Length (SI unit)

The meter (m), a fundamental measurement of distance.

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Volume (SI unit)

Cubic meter (m³), a derived unit used to measure space.

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Study Notes

Measurement and Error

Measurements quantify physical quantities, including magnitude.
The SI (International System) unit is widely used in science.
The fundamental units in SI provide consistency.

Basic Units

Length: meter (m)
Mass: kilogram (kg)
Time: second (s)
Electric Current: ampere (A)
Thermodynamic Temperature: kelvin (K)
Amount of Substance: mole (mol)
Luminous Intensity: candela (cd)

Derived Units

Derived units combine basic SI units for complex measurements.
Examples include area (square meter), volume (cubic meter), speed/velocity (meters per second), and acceleration (meters per second squared).

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Description

This quiz covers the fundamentals of measurements and errors, focusing on the International System of Units (SI). It explores both basic and derived units used in scientific contexts, providing a comprehensive understanding of physical quantities. Test your knowledge on the importance of unit consistency and conversion within the SI framework.