SI Units of Measurement
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Questions and Answers

What is the equivalent of 1 meter in millimeters?

  • 1000 mm (correct)
  • 100 mm
  • 10,000 mm
  • 100,000 mm

    • How many grams are equal to 1 kilogram?

  • 500 g
  • 100 g
  • 1000 g (correct)
  • 10,000 g

    • What is the equivalent of 1 second in minutes?

  • 1/15 min
  • 1/30 min
  • 1 min
  • 1/60 min (correct)

    • What is the temperature in Kelvin equivalent to 100°C in Celsius?

    <p>373.15 K</p> Signup and view all the answers

    What is the definition of 1 ampere in terms of electric charge?

    <p>The flow of 1 coulomb of electric charge per second</p> Signup and view all the answers

    What is the prefix 'micro-' equal to in the metric system?

    <p>one-millionth</p> Signup and view all the answers

    How many grams are in 1 ton?

    <p>1,000,000 g</p> Signup and view all the answers

    What is the equivalent of 1 hour in seconds?

    <p>3600 s</p> Signup and view all the answers

    What is the absolute zero in Kelvin?

    <p>0 K</p> Signup and view all the answers

    How many millimeters are in 1 kilometer?

    <p>1,000,000,000 mm</p> Signup and view all the answers

    What is the boiling point of water in Celsius?

    <p>100°C</p> Signup and view all the answers

    Study Notes

    Length

    • The SI unit of length is the meter (m).
    • 1 meter is equal to:
      • 100 centimeters (cm)
      • 1000 millimeters (mm)
      • 0.001 kilometers (km)

    Mass

    • The SI unit of mass is the kilogram (kg).
    • 1 kilogram is equal to:
      • 1000 grams (g)
      • 1,000,000 milligrams (mg)

    Time

    • The SI unit of time is the second (s).
    • 1 second is equal to:
      • 1/60 minute (min)
      • 1/3600 hour (h)

    Temperature

    • The SI unit of temperature is the Kelvin (K).
    • Celsius (°C) is commonly used, where:
      • 0°C = 273.15 K (freezing point of water)
      • 100°C = 373.15 K (boiling point of water)

    Electric Current

    • The SI unit of electric current is the ampere (A).
    • 1 ampere is equal to:
      • 1 coulomb per second (C/s)
      • The flow of 1 coulomb of electric charge per second.

    Units of Measurement

    Length

    • Meter (m) is the SI unit of length.
    • 1 meter is equal to 100 centimeters, 1000 millimeters, or 0.001 kilometers.

    Mass

    • Kilogram (kg) is the SI unit of mass.
    • 1 kilogram is equal to 1000 grams or 1,000,000 milligrams.

    Time

    • Second (s) is the SI unit of time.
    • 1 second is equal to 1/60 of a minute or 1/3600 of an hour.

    Temperature

    • Kelvin (K) is the SI unit of temperature.
    • Celsius (°C) is commonly used, with 0°C being 273.15 K (freezing point of water) and 100°C being 373.15 K (boiling point of water).

    Electric Current

    • Ampere (A) is the SI unit of electric current.
    • 1 ampere is equal to 1 coulomb per second (C/s), representing the flow of 1 coulomb of electric charge per second.

    SI Units

    Length

    • Meter (m) is the SI unit of length
    • 1 meter is equal to 100 centimeters (cm) or 1000 millimeters (mm)
    • Kilometer (km) is a multiple of meter, equal to 1000 m
    • Centimeter (cm), Millimeter (mm), Micrometer (μm), and Nanometer (nm) are submultiples of meter, equal to 0.01 m, 0.001 m, 0.000001 m, and 0.000000001 m respectively

    Mass

    • Kilogram (kg) is the SI unit of mass
    • 1 kilogram is equal to 1000 grams (g)
    • Ton (t) is a multiple of kilogram, equal to 1000 kg
    • Gram (g), Milligram (mg), and Microgram (μg) are submultiples of kilogram, equal to 0.001 kg, 0.000001 kg, and 0.000000001 kg respectively

    Time

    • Second (s) is the SI unit of time
    • 1 second is equal to 1,000 milliseconds (ms) or 1/60 minute
    • Minute (min) is a multiple of second, equal to 60 s
    • Hour (h) is a multiple of second, equal to 3600 s
    • Millisecond (ms) and Microsecond (μs) are submultiples of second, equal to 0.001 s and 0.000001 s respectively

    Temperature

    • Kelvin (K) is the SI unit of temperature
    • 1 Kelvin is equal to 1 degree Celsius (°C) plus 273.15
    • Celsius (°C) scale: water freezes at 0°C and boils at 100°C
    • Fahrenheit (°F) scale: water freezes at 32°F and boils at 212°F
    • Kelvin (K) scale: absolute zero is 0 K (-273.15°C)

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    Description

    This quiz covers the basic units of measurement in the International System of Units (SI), including length, mass, time, and temperature.

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