Transcript File Vocabulary PPT set #1

FORCE
• Push or a
pull –
measured
in Newton’s
(N)
BALANCED FORCES
• Equal forces
acting on an
object in
opposite
directions
UNBALANCED FORCES
• Causes a
change in the
speed or
direction of
an object’s
motion
GRAVITY
• The force of
attraction
between
two objects
INERTIA
• The tendency of
all objects to
resist any
change in
motion – Things
want to keep
doing what they
are doing
WAVES
• A back and
forth motion
that carries
energy
through
matter or
through space
CREST
•The
highest
points on
a wave
TROUGH
•The
lowest
points on
a wave
MEDIUM / MEDIA
• A substance
(solids,
liquids, gases)
through
which a wave
can travel
WAVELENGTH
• The distance
from one point
on a wave to the
next
corresponding
point – from one
crest to another
AMPLITUDE
• A measure of the
wave’s height from
the resting
position. Larger
amplitudes carry
more energy.
FREQUENCY
• The number
of waves
made in a
given
amount of
time
1 Second
1 Second
ELECTROMAGNETIC
WAVES
• A wave that can
travel through
space and
matter and
consists of
vibrating electric
and magnetic
fields
MECHANICAL WAVES
• A wave that
travels only
through
matter by
creating
vibrations in a
medium
VISIBLE LIGHT
• The very narrow
range of
wavelengths and
frequencies in
the
electromagnetic
spectrum that
humans can see
REFLECTED
• The bouncing
back of a
wave after
the wave hits
a barrier
REFRACTED
• The bending
of a wave as
the wave
passes at an
angle
ABSORBED
• The transfer
of energy
carried by
light waves
to particles
of matter
TRANSMITTED
•The
passing of
light
through
matter
PHYSICAL PROPERTIES
• Properties that
DO NOT change
the chemical
nature of matter
– color, texture,
odor, density,
malleable,
ductile…
CHEMICAL PROPERTIES
• Properties that
DO change the
chemical
nature of
matter –
flammability
and reactivity
ATOMS
• The smallest
particle into
which an
element can be
divided and still
be the same
substance
NUCLEUS
• The tiny, very
dense, positively
charged region
in the center of
an atom; made
of protons and
neutrons
PROTONS
• A positively
charged
subatomic
particle of the
nucleus of an
atom – same as
the atomic
number
+
ELECTRONS
• Negatively
charged
subatomic
particle that is
found in all
atoms
-
NEUTRONS
• A subatomic
particle of
the nucleus
of an atom
that has no
charge
0
ELECTRON CLOUD
• A region
inside an
atom where
electrons are
likely to be
found
ATOMIC NUMBER
• The number
of protons in
the nucleus
of an atom
#5
ELEMENTS
• A pure
substance that
cannot be
separated into
simpler
substances by
physical or
chemical means
PERIODIC TABLE
• An
arrangement
of the
elements
according to
their atomic
numbers
CHEMICAL SYMBOL
• An
abbreviation
of a chemical
element using
one or two
letters – ex: H
= hydrogen
•Sodium
=
•Na
FAMILIES / GROUPS
• Elements that
are grouped
together
based on their
chemical
properties and
reactivity
REACTANTS
• A starting material in a
chemical reaction.
A+B=C
PRODUCTS
• A substance formed from a
chemical reaction
A+B=C
COMPOUNDS
• A pure substance composed of
two or more elements that are
chemically combined
2
hydrogen
1
oxygen
1 water
TEST YOURSELF!
Push or a pull
– measured in
Newton’s (N)
•Sodium
=
•Na
1 Second
1 Second
The bending of a
wave as the
wave passes at
an angle
E-
A+B=C
Equal forces acting
on an object in
opposite directions
A pure substance
composed of two or
more elements that
are chemically
combined
A wave that can travel
through space and
matter and consists of
vibrating electric and
magnetic fields
A+B=C
A subatomic
particle of the
nucleus of an atom
that has no charge
Properties that DO
NOT change the
chemical nature of
matter – color,
texture, odor, density,
malleable, ductile…
+
Elements that are
grouped together
based on their
chemical properties
and reactivity
The highest
points on a
wave
0
2
hydrogen
1
oxygen
1 water
#5