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WHAT IS MASS?
The amount of matter contained in a physical thing.
What is density?
the relationship between mass and volume of an object
a box has a mass of 50 g and a volume of 25cm2, what is its density?
2g/cm
What is the study of the stars called?
Astronomy
What two units do we measure density in?
g/cm3
kg/m3
What has a higher volume: a kg of gold or a kg of feathers? Why?
Feathers
Because it has a lower density
A bag has 15kg of diamonds in it and has a volume of
30cm3, what is its density?
0.5 kg/cm3
What can go faster than the speed of light?
nothing
Name 3 materials or objects that have high density.
.
Why does oil float on top of water?
.It has a lower density
The density of a box is 55 g/cm3 and has a volume of 10cm3, what is its mass?
550g
What organ in the body is electric?
The heart
What form of transportation is density very important when building the vehicle?
A ship or boat
What universal force is affected by mass?
Gravity
A box has a volume of 42m3 and a density of 3.6kg/m3, what is its mass?
151.2 kg
What does science allow us to create which makes modern life possible?
technology
Why does a male have a higher density than a female who is the same size (volume)?
A mall has higher bone and muscle mass
How can we calculate the mass of an object?
volume x density
A box has a mass of 44kg and has a density of 2.2 kg/m3, what is its volume?
20m3
What is the language of science?
Mathematics