Physical Properties
What are the 3 states of matter?
Solid, liquid and gas
What is the best way to measure the volume of an irregular shaped object?
Water displacement
What is matter?
Anything that has mass and occupies space
What is the unit used for mass?
Grams
Does mass change?
NO
Why do scientists use physical properties?
It helps them identify matter
What is the formula for finding the volume of a regular shaped object?
V=LxWxH
What is mass?
Amount of matter
What is the unit for volume?
cm3 or liters
Name two chemical properties
Flammability and Reactivity
What are physical properties?
Properties that do not change what the matter is, but classifies the matter.
What is the formula for finding density?
D=m/v
What is volume?
Amount of space matter takes up
What unit is density measured?
Measured in g/cm3 or g/mL
What is inertia?
The tendency of an object to resist change in its state of motion.
Name 4 physical properties
Mass, volume, density, solubility, malleability, ductility, thermal conductivity, conductivity, color, odor, state of matter
A cereal box measures 20” in length and has a width half of the length and has a depth of half of the width. What is the volume of this box?
V= 20x10x5=1000 in3
What is density?
Amount of mass in a specific volume.
What unit is weight measured?
newtons
Why does weight change?
Because gravity can change
What is a chemical property?
A property that lets matter react and create new and different substances.
The cereal box from the question above has a mass of 200 grams. Use this to find the density.
D= 200/1000 D= 0.02 g/in3
What is weight?
How much gravity is needed to hold that object
Tell the differences between mass and weight.
Mass constant Weight changes
Measure by balance scale Measure by spring scale
Unit is grams Unit is newtons
Amount matter Amount of gravity
What is a meniscus?
Curve in a liquid surface in graduated cylinder