6.1 Density Flashcards
1
Q
What is density
A
The density of a substance is defined as its mass per unit volume
2
Q
Equation for density, mass and volume. To work out density
A
density = mass/volume
3
Q
How do you measure the mass of an object
A
electronic balance
4
Q
How can you tell if an object will float on water by their density
A
objects that have lower density than water float in water
5
Q
how to find volume of solid
A
measure dimensions multiply together
6
Q
how to find volume of small irregular solid
A
- Measure mass on a balance and record
- Fill displacement can with water
- Lower object slowly using string
- Collect water displaced in a measuring cylinder
- Displaced water volume is volume of object
- Density = mass/volume
- Repeat three times and calculate mean
7
Q
how to measure volume of liquid
A
measuring cylinder
8
Q
how to measure density of regular object
A
- Measure mass with balance and record
- Measure length width and height of object with a ruler
- Do the lenght x with x height to work out volume
- Density = mass/volume
- Repeat three times and calculate mean
9
Q
whats the unit of density
A
kg/m cubed
10
Q
mass units for density equation
A
kg
11
Q
volume units for density equation
A
m cubed
12
Q
How to get from cm3 to m3
A
divided by 1,000,000
13
Q
How to get from 1gm/cm3 to kg/m3
A
multiply by 1000
