2. Tools
• Volume – Graduated Cylinder, meter stick
– Units: mL (liquid), cubed (solid)
• Mass – triple beam balance
– Units: kg (kilogram)
• Length – meter stick
– Unit: m (meter)
• Force – spring scale
– Units: N (Newton)
3. • Temperature – thermometer
– Units: K (Kelvin) we use °C (Celsius)
• Time – stopwatch
– Units: sec (seconds)
4. SI – International System
• SI: International system (metric) – used
globally as a standard of measurement
and units so that info can be shared
accurately
• Based on 10 making conversion of units
easier
• We do not measure in standard –
EVER!!
5. Length
• Measure of distance from one point to
another
– Units: (0fficial is m=meter) km, m, cm, mm
6. Area
• Measure of the surface of an object
• Formula: A=lxw
• all answers must be squared units
• m2, cm2, km2
7. Volume
• the amount of space something occupies
• Formula: V=lxwxh for a solid that you can
physically measure
• OR: water displacement, object is placed in
water and the starting value is subtracted from
the ending value
– Units: cubed (for a solid) m3,cm3
• Measured by displacement
– Units: mL (mL is never cubed)
• 1 mL=1cm3
8. Mass
• The amount of matter that something is
made of
• Units: Official Kg - g, mg, cg
9. Density
• Amount of matter in a given volume
Formula: D=m/v
• Units:
• measured with water displacement – g/mL
• Physically measured (solid) – g/cm 3
• Density can not be measured directly, you
must know (find) the mass and the volume
to calculate
10. Temperature
• The measure of how hot or cold
something is (average kinetic energy of
the objects particles)
• Units: Official K (Kelvin) never °K, just K
• We use: °C - Celsius
