Transcript Chapter 9 - SchoolRack
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) Chapter 9 (8
th
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. Motion 2. Reference point 3. International System of Units 4. Speed 5. Average speed 6. Instantaneous speed 7. Velocity 8. Slope 9. 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 Average Description Example Instantaneous Speed at any given point in time Driving a car and looking down at the speed-o meter Total distance traveled/by total time A road trip Constant Speed that does not vary Putting car on cruise control
Describing Motion Graphing Motion Motion of an object can be plotted on a distance-time graph. x axis
time y axis
distance y 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 C. dairy/egg B. citrus 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 and the direction of an object 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/s 2 )=change in velocity (m/sec)/time (sec) *note-change in velocity=final velocity— initial velocity A v = V f — V i Acceleration formulas: a=V f —V i t
Positive Acceleration A plane takes off a=V f —V i =80m/s—0m/s t 20s a=4m/s 2 The plane is speeding up so acceleration is positive.
Negative Acceleration A bike comes to a stop a=V f —V i =0m/s—3m/s t 2s a=-1.5m/s The bike is slowing down so acceleration is 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 DESCRIPTION Static Sliding Rolling Fluid EXAMPLE Friction in which 2 surfaces are not moving past each other Friction where 2 surfaces slide past one another Sledding down hill Friction between a rolling object and surface it rolls on Pushing a fridge across a floor Skateboard moving on ground Friction when object moves through fluid (liquid or gas) 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
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Do NOW: Complete a concept map for chapter 9
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Work Session: Students will make a Newton’s Laws of Motion foldable as an intro to chapter 10.
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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
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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.