Chp1 chem

• What is the unit measured in seconds, minutes, and hours?

  Time
• What instruments can be used to measure time?

  Digital stopwatch and analogue stopwatch
• What are the units of temperature?

  Kelvin (K) and degree Celsius (°C)
• What instrument is used to measure temperature?

  Thermometer
• What are the units of length?

  Metre (m), centimetre (cm), and decimetre (dm)
• What instruments can be used to measure length?

  Metre rule and measuring tape
• What are the units of mass?

  Kilogram (kg), gram (g), and tonne (t)
• What instrument is used to measure mass?

  Beam balance
• What are the units of volume?

  Cubic metre (m³), cubic centimetre (cm³), and cubic decimetre (dm³)
• What are the different types of volumetric measuring instruments and their characteristics?

  • Pipette: Accurate, smaller volumes (10.0 cm³ / 25.0 cm³)
  • Volumetric flask: Accurate, larger volumes (100 cm³ / 250 cm³)
  • Measuring cylinder: Range for larger volumes (30.0 - 50.0 cm³)
  • Burette: Range for smaller volumes (30.00 - 50.00 cm³)