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Science 8 quiz 1
What is volume?
the amount of space in a substance or object.
What unit is volume of solid measured by?
cubic centimetres (cm3) or cubic metres (m3)
What unit is volume of liquid gases measured by?
litres (L) or millilitres (ml)
what is volume determined by?
viewing the measurement of a liquid in a container (ML)
volume of a rectangular prism (cm3)=L*(cm)*W(cm)*H (cm)
Using displacement method in a container to measure an irregular shaped object (ml)
How to you measure volume precisely?
You use volumetric flasks.
What do you do when your reading the flasks?
look at the lowest point of the metrics.
What is the metric system?
An international system of measuring.
What is the metric system based on?
the multiples of 0
What units does the metric system use for length?
m, mm, km
What units does the metric system use for mass?
grams
What units does the metric system use for time?
seconds
What is a fluid?
any form that can flow.
What is a fluid?
something that does not have a fixed shape.
What are liquids and gases?
fluids
What is density?
the amount of material (mass) for each unit of space it occupies (volume)
What is the equation for density?
density=mass/volume
How do fluids that do not mix separate?
they separate according to their density.
Where do less dense fluids go?
they settle on the top of more dense fluids.
What is the density of water?
1g per nl (1g/ml)
What is the unit for measuring density for fluids?
grams per milliliter (g/mL)
What is the unit for measuring density for solids?
grams per cubic centimeter (g/cm ).
What is buoyancy?
is a physical property that is directly proportional to the density of the fluid which an object immersed (in a fluid).
What does buoyancy mean?
it is the tendency to rise or float in a fluid.
What can you think of buoyancy as?
an upward thrust or upward force
What is the formula for calculating buoyancy?
Fb=PGV
What does Fb stand for?
force of buoyancy
What does PGV stand for?
Density, gravity, and volume
What is viscosity?
is a physical property that can be used to describe liquids.
What does viscosity do?
it is the measure of residence to deformation at a given rate/
What can you think of density as?
thickness of a liquid
