1. PHYSICAL SCIENCE- is concerned with all matter and energy

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Physical Science Review
1. PHYSICAL SCIENCE- is concerned with all matter
and energy 2. DATA- results of observation 3.
HYPOTHESIS- educated guess/prediction 4.
RELATIVE MOTION- determined by comparing a moving
object to a fixed object. 5. TRANSLATIONAL
MOTION- motion in a straight line 6. DISTANCE-
the total length along a path between two
points 7. SPEED- the rate at which an object's
position changes
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8. VELOCITY- how fast and in what direction an
object moves 9. DECELERATION- a decrease in an
object's velocity 10. FRICTION- a resistance to
motion 11. STATIC FRICTION- produces no heat or
wear 12. LUBRICANTS- a slippery material that
reduces friction. 13. INERTIA- the tendency of
an object to resist changes in motion 14.
MOMENTUM- the strength of an object's motion 15.
NEWTON'S THIRD LAW OF MOTION- for every action
there is an equal and opposite reaction
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16. CENTRIPETAL FORCE- keeps an object moving in
a circle 17. AXIS- the imaginary line around
which an object rotates 18. TERMINAL VELOCITY-
the velocity a falling object reaches when
air resistance and gravity are balanced. 19.
COPERNICUS- the scientist who first theorized
that planets circle the sun 20. NEWTON-
the scientist who gave the first explanation of
why planets move around the sun 21.
ACCELERATION DUE TO GRAVITY- is the same for both
heavy and light objects 22. PROJECTILE-
an object moving freely through space after an
initial push
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1. MICROGRAVITY- the condition in which gravity
   seems to disappear because objects are falling at
   the same rate
2. VOLUME- measured in mL or cubic cm. and the
   amount of space an object takes up
3. DENSITY- the amount of mass in a given volume
4. ATOM- tiniest particles making up matter.
5. CRYSTALS- solids with their particles in a
   definite repeating pattern.
6. ADHESION- the force attracting particles of one
   substance to particles of another.
7. VISCOSITY- the resistance of a liquid to flow

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1. ARCHIMEDES- stated that the buoyant force of an
   object. Is equal to the water or gas it
   dispenses.
2. SUBLIMATION- the process by which a solid changes
   to a gas without becoming a liquid.
3. LATENT HEAT- the heat that causes ice to melt
   before raising the overall temperature of water.
4. PASCAL- the principle stating that if the
   pressure of a liquid in one part of a container
   changes the pressure throughout the container
   changes.
5. BERNOULLI- principal stating that as the velocity
   of a gas increases, the pressure it exerts
   decreases as the velocity decreases, the
   pressure increases
6. ELEMENT- can't be broken down by heat, light, or
   electricity

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• MALLEABLE- can be hammered, rolled, or shaped
  without being broken.
• MERCURY- only liquid metal
• CHEMICAL CHANGES- change in a substance that
  produces a new substance with different chemical
  properties.
• CHEMICAL PROPERTIES- characteristic of a
  substance that describes how the substance
  reacts with other substances
• LUSTER- the shine of metals
• PHYSICAL CHANGE- don't alter the identity of a
  substance
• EXCITED STATE- atoms with electrons in higher
  levels

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43. ISOTOPES- atoms of the same element but with
different" number of neutrons 44. CHLORINE-
Cl 45. Temperature- The measure of the average
kinetic energy of all the particles in an
object 46. SPECIFIC HEAT- Measure of materials
ability to take in or give off heat 47.
CONDUCTION- transfer of heat by direct contact
between a source and an object 48.RADIATION-
transfer of energy in waves 49. KINETIC THEORY
OF MATTER- matter consists of tiny particles in
constant motion
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• HEAT- amount of energy transferred from one place
  or object to another
• 51. CALORIMETER- measures heat
• 52. CONVECTION- movement of large mass of air or
  water as a result of a temperature difference
  between two masses
• 53. EXPANSION- seams in bridges allowing for
  changes due to differences in temperature.
• 54. ENERGY- the ability to do work
• 55. KINETIC ENERGY- energy due to an object's
  motion.
• 56. POTENTIAL ENERGY- energy due to an object 's
  position.

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57. FULCRUM- supports bar in lever. 58. COMPOUND
MACHINE- shovel, scissors--combination of simple
machines 59. WORK- an object moves parallel to
the direction of the force exerted upon it.
60. INCLINE PLANE M.A.- is greatest when it's
length is greater than it's height. 61. SALT-
NaCl 62. MIXTURE- variable amounts of each
substance. 63. SATURATE- When no more of a
solute will dissolve.
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64. SUSPENSION- Mixtures in which particles of
one substance become scattered through out
another without dissolving. 65. EMULSION- a
colloid consisting of one liquid suspended
in, another. 66. SOLVENT- when sugar is
dissolved in water.