Volume: Measure of how much space an object takes up
Common Measurements:(cm3, m3, km3, mL, L )
How to measure?
Regular shaped
objects (Rectangle) – Use a formula (V=l×w×h)
Irregular shaped object- Use principal of displacement ( Vobject= Vobject+ water - Vwater )
Mass: measure of how much matter an object contains
Common measurement: kg, g, ton, mg
How to find- Scale
Weight: Direct measurement of the force (Pull) of gravity on an object
Common measurement: N (Newton)
Use formula: Fg= mg
Mass= m Gravity= g
g= 9.81m/s²
Density: Mass per Volume, How much something has compared to its volume
Common units: g/mL , g/cm3, kg/mL,kg/m3
How to measure?
Use formula: D=m/v
Buoyancy: Force that helps you floats, upward force on an object in a fluid
Common measurement: N (Newton)
Archimedes Principle
(FB = Dl × Vl × g) FB= Force of buoyancy
3 types of Buoyancy
Positive buoyancy: Objects that are less dense than a fluid will float
Neutral buoyancy: Neutrally buoyant objects neither float nor sink. Instead, they flowing in the water. In order to be neutrally buoyant, an object must have the same density as the fluid it's placed in.
Negative buoyancy: Objects that are denser than a fluid will sink
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