Science-density Flashcards
What is the definition of density?
Density is the mass of 1cm3 of a substance
What is the density of water?
1g/cm3
How do you calculate density?
M divided by v
How do you calculate mass?
D x v
How do you calculate volume?
M divided by d
What is the unit for density?
g/cm3
What is the unit for mass?
g
What is the unit for volume?
Cm3
How do you calculate the density of an irregular object?
Put on a mass balance then you tie a string around the object and put it into an overflow can. The amount of water that spills out into your graduated cylinder is the volume. Then divide the mass by the volume which will give you the density.
How do you know if something will sink?
If the density of the object is more than 1g/cm3 it will sink
How do you know if something will float?
If the density is under 1g/cm3
What does a hypothesis contain?
If and the e.g. If you put a bar of chocolate in a warm room then it will melt quicker.
