14 Questions
What are the three basic physical quantities in mechanics?
Length, Time, Mass
What is the SI unit for mass in mechanics?
kilograms (kg)
Which system of units is related to the speed of light?
SI system
What is the SI unit for time in mechanics?
seconds (s)
Which basic quantity of mechanics is related to the vibration of a Ce atom?
Time
What is the SI unit for length in mechanics?
meters (m)
What is the prefix for $10^{12}$?
Tera
What is the size of living cells typically measured in?
Micro
What is the mass of the Earth in kilograms?
$5.98 \times 10^{24}$
What unit system uses units such as foot, slug, and second?
US customary system
What is the SI unit for force?
Newton (N)
What is the derived quantity defined as a combination of basic quantities?
Density
What is the volume of a sample of iron if its density is 7.86 g/cm³ and mass is 10 g?
$1.27$ cm³
What is the SI unit for density?
$kg/m^3$
Study Notes
Physical Quantities in Mechanics
- Three basic physical quantities in mechanics: mass, length, and time
SI Units in Mechanics
- SI unit for mass: kilogram (kg)
- SI unit for time: second (s)
- SI unit for length: meter (m)
Unit Systems
- System of units related to the speed of light: SI (International System of Units)
- Unit system that uses units such as foot, slug, and second: English System
Basic Quantities and Units
- Basic quantity related to the vibration of a Ce atom: time
- Prefix for 10^12: tera (T)
Measurement and Units
- Size of living cells typically measured in: micrometers (μm)
- SI unit for force: newton (N)
Derived Quantities
- Derived quantity defined as a combination of basic quantities: force
Density and Volume
- SI unit for density: gram per cubic centimeter (g/cm³)
- Volume of a sample of iron with a density of 7.86 g/cm³ and mass of 10 g: 1.28 cm³ (calculated using the formula: V = m / ρ)
Test your understanding of Chapter 1 on Physics and Measurement from the textbook 'General Physics 1 (10221101) Classical Mechanics'. Questions cover basic quantities of mechanics, international system of units, and more.
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