Chapter 9 - SchoolRack

Report
1. Most precious
gift from the
holidays
2. Favorite
holiday dessert
3. What is the
difference in a goal
and a resolution?
Table Talk
Directions:
Beginning with the
table mate who is
wearing the most
buttons and
moving to the
right, share the
following with your
table mates:
Unit 3: Motion and Energy
Chapter 2 (HS Book)
th
Chapter 9 (8 grade book)
January 6-9, 2015
Tuesday DO Now:
A solution which has a concentration that
exceeds its predicted solubility at a
certain temperature and pressure would
be —
A. unsaturated.
B. saturated.
C. supersaturated.
D. diluted.
Georgia Performance Standard:
SPS8. Students will determine
relationships among force, mass,
and motion.
a. Calculate velocity and
acceleration.
HOMEWORK
Wednesday, January 7 wear
, and your device to be used for
the stop watch and the calculator.
Due Friday, January 9: Chapter 9 Study
Guide/Vocabulary
On Friday, we need hot wheels cars for the
lab assignment. If you have some that we can
use, let me know. Or if you would like to
donate some, it would be appreciated.
Vocabulary
1.
2.
3.
4.
5.
6.
7.
8.
9.
Motion
Reference point
International System of Units
Speed
Average speed
Instantaneous speed
Velocity
Slope
Acceleration
The Big Idea:
Describing Motion
Essential Question:
Are distance and time important
when describing motion?
IB Question:
Are you in motion?
Describing Motion
Motion—occurs when an object changes
position relative to a reference point.
Distance vs. Displacement
Distance—how far an object has
traveled
Displacement—distance and direction
of an object’s change in position from
starting point.
Describing Motion
SPEED
Speed—the distance an object travels
per unit time—rate of change
*average speed (v)=total
distance(d)/total time(t)
v=d/t
Type of speed Description
Example
Instantaneous Speed at any Driving a car
given point in and looking
time
down at the
speed-ometer
Average
Total distance A road trip
traveled/by
total time
Constant
Speed that
Putting car on
does not vary cruise control
Describing Motion
Graphing Motion
distance
Motion of an object can be plotted on a
distance-time graph.
y
x axis  time
y axis  distance
time
The slope of a line on a distance time
graph gives the speed of an object in
motion.
x
Work Session
1. Students will create a formula triangle
foldable to help them calculate speed,
distance, and time. Each tab will need to
have the definition of each term as well as
directions on how to calculate each term.
2. Student will complete word problems to
demonstrate the calculations for speed,
distance, and time.
Ticket-out-the-door
Answer the essential question with complete
thought.
Are distance and time important when
describing motion?
Wednesday DO Now:
The table below shows pH values of some foods.
A patient has chronic indigestion due to an
overproduction of stomach acid. Which foods
should the patient avoid until the condition is
resolved?
A. vegetables
B. citrus
C. dairy/egg
D. starches
HOMEWORK
Due Friday, January 9: Chapter 9 Study Guide
On Friday, we need hot wheels cars for the
lab assignment. If you have some that we can
use, let me know. Or if you would like to
donate some, it would be appreciated.
Georgia Performance Standard:
SPS8. Students will determine
relationships among force, mass,
and motion.
a. Calculate velocity and
acceleration.
The Big Idea:
Describing Motion
Essential Question:
Are distance and time important
when describing motion?
IB Question:
Are you in motion?
Describing Motion
Work Session: Speed Lab
*Grab your jacket
*Bring your device (cell phone, ipod, etc.)
*Get you Lab paperwork and a pencil/pen
*Line up
*Complete the lab—everyone must complete
their own lab report. Lab reports are due
today.
Ticket-out-the-door
Turn in your completed lab report
and graph.
Thursday DO Now:
The diagram below shows two aluminum spheres.
Aluminum sphere A contains a small negative charge and
is touched by aluminum sphere B, which has a larger
negative charge. Which of the following occurs next?
A. Protons flow from sphere B to sphere A.
B. Protons flow from sphere A to sphere B.
C. Electrons flow from sphere B to sphere A.
D. Electrons flow from sphere A to sphere B.
HOMEWORK
Due Friday, January 9: Chapter 9 Study Guide
On Friday, we need hot wheels cars for the
lab assignment. If you have some that we can
use, let me know. Or if you would like to
donate some, it would be appreciated.
Georgia Performance Standard:
SPS8. Students will determine
relationships among force, mass,
and motion.
a. Calculate velocity and
acceleration.
The Big Idea:
ACCELERATION
Essential Question:
What is the difference between
positive and negative acceleration?
IB Question:
Are you in motion?
Acceleration
Velocity—includes speed of an object
and the direction of its motion.
Q: What is the difference between
speed and velocity?
A: Velocity includes direction where
as speed does not.
Acceleration—rate of change of
velocity. Acceleration occurs when an
object changes speed, direction or both.
ACCELERATION
CALCULATING ACCELERATION
Acceleration (m/s2)=change in velocity
(m/sec)/time (sec)
*note-change in velocity=final velocity—
initial velocity
Av = Vf — Vi
Acceleration formulas: a=Vf—Vi
t
Positive Acceleration
A plane takes off
a=Vf—Vi=80m/s—0m/s
t
20s
Negative Acceleration
A bike comes to a stop
a=Vf—Vi=0m/s—3m/s
t
2s
a=4m/s2
a=-1.5m/s
The plane is speeding up The bike is slowing down
so acceleration is
so acceleration is
positive.
negative
Work Session
Practice, Practice, Practice
Students will practice acceleration
equations and word problems.
Ticket-out-the-door
List 3 examples when acceleration
is important or necessary in daily
living.
Friday DO Now:
Prepare your study guide to be
graded. I will come around to
check your study guide.
Georgia Performance Standard:
SPS8. Students will determine
relationships among force, mass,
and motion.
a. Calculate velocity and
acceleration.
The Big Idea:
Acceleration
IB Question:
Are you in motion?
Acceleration
Hot Wheelin’ Lab:
See the lab lesson plan and handouts.
Tuesday DO Now:
• Complete the open note quiz:
Describing Motion
HOMEWORK
1. Study your notes
2. Review chapter 2 in the HS book
3. Complete daily assignments from the
notebook work that you do not finish in class
Georgia Performance Standard:
SPS8. Students will determine
relationships among force, mass,
and motion.
a. Calculate velocity and
acceleration.
The Big Idea:
Motion and Forces
Essential Question:
What does the force of friction
between 2 objects in
contact depend on?
IB Question:
Are you in motion?
Motion and Force
Force—a push or pull applied to an
object
Net Force—when 2 or more forces
act on an object at the same time.
Forces are
balanced forces
Net force = 0
Forces
unbalanced
Net force = +
Combined Forces
Net force=2 forces
+ together
Motion and Forces
Friction—the force that opposes the
sliding motion of the touching
surfaces.
Friction is caused by
microscopic bumps on surfaces
called micro-welds
Motion and Forces
TYPE OF
FRICTION
Static
Sliding
DESCRIPTION
Friction in which 2 surfaces
are not moving past each
other
Friction where 2 surfaces slide
past one another
Rolling
Friction between a rolling
object and surface it rolls on
Fluid
Friction when object moves
through fluid (liquid or gas)
EXAMPLE
Pushing a fridge
across a floor
Sledding down
hill
Skateboard
moving on
ground
Skydiving
Motion and Forces
Air resistance—friction like force
that opposes motion of objects
that move through air—depends
on speed, size, and shape of
object.
Motion and Forces
Monday-MLK, Jr. Holiday
Tuesday—Mrs. Lix absent
– Do NOW: Complete a concept map for
chapter 9
– Work Session: Students will make a Newton’s
Laws of Motion foldable as an intro to
chapter 10.
– Closing: Remind students of Chapter 9 test
on Wednesday.
Wednesday—Chapter 9 test
Thursday—Make-up work day
Thursday DO Now:
• Complete the open note quiz:
Acceleration
• Make-up work day
Friday Do Now:
With your elbow partner make a
vocabulary card for the word
wall. Your vocabulary card must
include the word, the definition,
a sentence, and a
picture/sketch/graphic.
Georgia Performance Standard:
SPS8. Students will determine
relationships among force, mass,
and motion.
a. Calculate velocity and
acceleration.
The Big Idea:
Motion and Forces
Essential Question:
What does the force of friction
between 2 objects in
contact depend on?
IB Question:
Are you in motion?
Motion and Forces
Conduct the Hot Wheels Extension
lab
Using the date collected from the
previous Hot Wheels Lab.

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