Transcript Blitz Cards For MCT Review

Competency 2:
Physical Science
Obj. 2a: Chemical Equations
FRONT
BACK
 NaCl

 H20
 (water)
 C6H12O6
 (sugar/glucose)
 O2
 (oxygen gas)
 CO2
 (carbon dioxide)
 N2
 (nitrogen gas)
 CH4
 (methane)
(table salt) or (sodium
chloride)
1 question
Obj. 2a: Conservation of
Mass
Law of conservation of
mass:
matter cannot be created nor
destroyed, therefore the
mass of the reactants must
equal the mass of the
products
Obj. 2a: Balancing Equations
What would you have to put before the
O2 on the reactant side in order to
balance the equation?
CH4 + __ O2
CO2 + 2H2O
Put answer on back
2.a. Balancing Equations
Zn + 2HCl
ZnCl2 + H2
How many hydrogen molecules will
be produced if there is 1000 HCl
molecules in the reactant side of this
balanced equation?
Show the work on the back.
Obj. 2.a. Photosynthesis and
Respiration
Respiration
oxygen + sugar
6O2 + C6H1206
carbon dioxide + water + energy
6CO2
+ 6 H 2O
1 question
Obj. 2.a. Photosynthesis and
Respiration
Photosynthesis
carbon dioxide + water + sunlight
6 CO2 + 6H2O
oxygen + glucose
6O2
+ C6H1206
1 question
Obj. 2.b. Periodic Table
Properties of Metals and nonmetals
Nonmetals: on the right side of the
periodic table in groups starting at the
staircase
Insulator
Brittle
Obj. 2.b. Periodic Table
Properties of Metals and nonmetals
Metals: on the left side of the periodic
table in groups
Malleable
Good conductors
Ductile
2.b. Types of Bonds
Ionic: between a metal &
non-metal
Ex. NaCl Group 1 bonded to
group 17
2.b. Types of Bonds
Covalent: between two
non-metals
Ex. CO2 Group 14 bonded
to group 16
2.b. Important Groups
Front
 Group 17
 Group 3-12
 Group 1
 Group 2
 MetalloidsGroups 13-17
Back
 nonmetal halogens
 transition metals
 alkali metals
 alkaline earth metals
 touch the staircase &
divide the metals from
non-metals
1- 2 question
2b. Draw an outline of the periodic table.
Label the metals and nonmetals.
2b Groups
 Vertical columns
 Have similar properties
Group 15
7
 Group Number = number of
valence electrons
N
Nitrogen
14.007
Obj. 2.b. Acids
More reactive, stronger bond,
weaker acid
H+
Bond with nonmetals
HF weakest acid, HI strongest
acid
Less reactive, weaker bond,
Stronger acid
Obj. 2.b. Bases
 OH- (Hydroxide)
Bond with metals
Ex: NaOH, MgOH, NH3
React with acids to form
water and a salt
Obj. 2.b. Periodic Table
Oxidation: when a substance
reacts with oxygen
Examples:
Rusting (iron oxide)
Food spoiling
Burning (fast oxidation)
Obj. 2.c. Motion
Speed formula – s=d/t
Constant velocity: no
change in motion
(balanced force)
ex. 50mi/h for an hour
2.c. Speed Graphs
Draw the graph on the front and label on the back.
Constant speed
Constant Speed
2.c. Speed Graphs
Draw the graph on the front and label on the back.
Speeding up
2.c. Speed Graphs
Draw the graph on the front and label on the back.
No motion
2.c. Acceleration: change in motion
(unbalanced force)
ex. Speed up, slow down, change
direction speed & velocity are the
same
Acceleration
graphs- put on
separate card.
 Label each:
Speeding up at
a constant rate
Slowing down
at a constant
rate
Constant (no
acceleration)
Obj. 2.f. Newton’s Laws
1st law (law of inertia): An
object at rest will stay at rest.
An object in motion will stay
in motion.
Ex. Car stops, but your body
moves forward
An object in moving in space
will continue (comet)
2.f. 2nd Law of Motion
2nd law (F=ma) : an object
will accelerate in the direction
of the net force
Ex. Kick a ball upward and it
moves upward
Objects with more mass
require more force to move.
2.f. 3rd Law of Motion
3rd law
(action/reaction):
forces always act in
equal but opposite pairs
Ex. Swimming, birds
flying, rockets
Obj. 2.d.
Electrical Energy
AC currents (alternating):
used in power grids
Travel in both directions
Voltage can change with transformers
DC current (direct): only flows in
one direction
Used in batteries
Obj. 2.d.
Power Grids
Path of electricity through a
power grid from high to low
voltage
Power plant, substation,
transformer, junction box, outlet,
microwave
Power can be added to the grid if
it is not used by the customer.
Obj. 2.d. Power Grids
 Renewable resources: natural resources
that can be replenished naturally with the
passage of time
 Wind
 Solar
 Hydro
 Geothermal
 Reduce pollution, but more expensive.
Obj. 2.d.
Power Grids
Transformer- Increases or decreases
voltage in the power grid
Obj. 2.d. Power Grids
generator- spins a coiled wire inside a
magnetic field to produce electric current
Obj. 2e
Electromagnetic Spectrum
 List the spectrum from longest wavelength to shortest, then
label the following information on the spectrum
 Infrared: heat/thermal
 Radio: communication – lowest energy
 Gamma: treat cancer – highest energy
 Visible: royGbiv- from (longest to shortest)
Obj. 2.e. Electromagnetic Spectrum
Ultraviolet (UV)
blocked by ozone
damage skin cells, cause skin
cancer
can be used to disinfect
medical equipment, rid water of
bacteria or microorganisms,
etc.