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Flashcards covering key vocabulary and concepts related to mass, volume, and density from Grade 8 science notes.
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Mass
The amount of matter in an object.
SI unit of mass
Kilograms (kg)
Other units of mass
Grams (g)
Volume
The amount of space that matter occupies.
SI unit of volume
Cubic meters (m³)
Other units of volume
Millilitres (mL), Litres (L), Cubic centimetres (cm³)
Meniscus
Curved shape of a liquid in a tube.
Concave Meniscus
An upward curving meniscus.
Convex Meniscus
A downward curving meniscus.
Water-displacement method
Using the volume of water displaced by an object to determine its volume.
Density
Relates to the mass per unit volume of a substance.
SI unit of density
Kilograms per cubic meter (kg/m³)
Other units of density
Grams per cubic centimeter (g/cm³)
Density depends on
A measure of the number of particles in a cubic centimeter and the mass of each particle.
Mathematical equation for density
density = mass/volume
Less dense than water
An object will float in water.
More dense than water
An object will sink in water.
Buoyant Force
Equal to the weight of the fluid that the ship displaces.