Density And Flotation Flashcards
1
Q
Density
A
The density of a substance is the mass of one cubic cm of it. The amount of mass in a certain volume of a substance
2
Q
Density unit
A
Grams per cubic centimetre of kilograms per cubic metre
G/cm3 or kg/m3
3
Q
Float
A
An object will float in a liquid if it is less dense than the liquid
4
Q
The Dead Sea
A
The Dead Sea is very dense because so much salt is dissolved in it
5
Q
Examples of things that float
A
Cream floats on coffee Oil floats on water Rubber ducks float open water Ice will sink in oil Gold would sink In water
6
Q
How do ships float
A
A ship is hollow and the inside is filled with air so the density is less than water
7
Q
Mass
A
The amount of matter in it
Measured in kilograms (kg) or grams (g)
It is measured using an electronic balance
