Physical properties of matter
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Q: The smallest unit of matter
Transcript of Physical properties of matter
Q: The smallest unit of matter
A: Atom
Q: Model of an atom
A: Bohr Diagram
Q: Atomic Number
A: # of Protons in the nucleus
Q: Electrical charge of the 3 atomic particles
A: Protons + Electrons - Neutrons 0
Q: Mass or Weight of the 3 atomic particles
A: Proton = 1amu Neutron = 1 amu Electron = 0 amu
Q: Atomic Mass (Weight)
A: # Protons + # Neutrons
Q: A change in which new matter is formed (burning wood,
cooking food, rusting iron).
A: Chemical Change
Q: Combinations of different elements that result from chemical
changes.
A: Compounds
Q: Characteristic properties of matter (always the same)
A: Boiling point, melting point, density, conductivity
Q: Non-characteristic properties of matter (can vary with items)
A: Shape, mass, length,
Q: The ability to transmit energy (electrical, heat, light)
A: Conductivity
Q: The amount of matter in a given space.
A: Density
Q: Combining a solid with a liquid to form a homogeneous
solution.
A: To Dissolve
Q: Matter made up of one kind of atom.
A: Element
Q: When liquid changes to gas.
A: To Evaporate
Q: What is the Law of the Conservation of Matter?
A: During an ordinary chemical reaction, matter can’t be
created or destroyed.
Q: Anything that takes up space and has mass.
A: Matter
Q: The amount of matter in a body.
A: Mass
Q: Two or more materials combined
but not chemically joined. Can be separated by physical
means (filtering, boiling).
A: Mixture
Q: Mixture with parts evenly distributed throughout
A: Homogeneous mixture
Q: Mixture with parts kept separate
A: Heterogeneous mixture
Q: The smallest particle of a substance that retains the
chemical and physical properties of the substance and
is composed of two or more.
A: Molecule
Water/H2O
Q: Chart of the more than 100 different elements found on
earth.
A: Periodic Table of the Elements
Q: The ability of a substance to dissolve in a liquid (ex: sugar).
A: Solubility
Q: Mixture in which particles of the substances are evenly
mixed and cannot be separated by means such as filtering.
A: Solution
Q: Mass X Gravitational force (measured with a spring scale)
A: Weight(measured in Newtons)
Q: How much matter is in an object;
measured with a triple beam balance.
Units: grams
A: Mass
Q: How much space an object takes up; measured with a
graduated cylinder or length x width x height.
Units:Milliliter or cm3
A: Volume
Q: How much matter is packed into a particular space. Units: grams/milliliter or
grams/cm3
A: Density
Q: How do you calculate density?
A: Density = Mass/Volume
Find volume by multiplying Length X Height X
Width
Or:
Q: Non-reversible change when bonds are broken and
something new is produced.
A: Chemical change
Q: Reversible change where substances keep their chemical
composition and no new substances are produced.
(mixing, freezing, boiling, evaporation,
tearing, crushing)
A: Physical Change
