Displacement
Displacement is a method used to calculate the volume or an irregular object
Steps:
- Fill the graduated cylinder with enough water to cover the object
- Note the starting volume using the correct number of sig-figs
- Slowly drop in the sample- without splashing the water
- Record the new volume
- Subtract the initial volume from the final volume to determine the volume of the sample, using the correct number of sig-figs
Density
Density- the mass of a substance per unit volume
An object's density is all about its mass and volume. A rock is heavy for its size. It has a high mass relative to its volume. It has a fairly high density. On the other hand, a wooden block is light for its size. It has a low mass relative to its volume. It has a fairly low density.
Equation: d = m / v
- d- density
- m- mass
- v- volume
- units: g/mL or g/cm^3
- REMEMBER YOUR SIG-FIGS
