1. Day 2 / 8 January 2019 8th Grade Science

2. ENTERING THE CLASSROOM
REST prior to tardy bell (means it is OK to talk and move around) IN LINE at cover distance.
TARDY BELL RINGS – Class goes to Parade Rest IMMEDIATELY
Class Leader calls class to ATTENTION
File from right/left (column left/right) MARCH
At ATTENTION behind desk
Take SEATS – Per Ardua Ad Astra (Through Hard Work the Stars)
Get out notebooks, pencils, hang backpack on side of desk
Work on starter

3. Quiet Work Stand & Deliver Open Discussion Team Work
CLASSROOM MODE
Quiet Work
Stand & Deliver
Open Discussion
Team Work

4. STANDARDS FOR QUIET WORK
I am listening to the teacher.
I am not talking.
I am taking notes or doing other silent work as directed.
I am paying complete attention to the teacher.

5. Notebooks Entries Explained:
In pencil ***ALL SCIENCE IS DONE IN
Labeled with the Entry Number
Labeled with the Name of the Entry
Labeled with the Date
Clearly legible
Followed by a horizontal line to separate entries on a single page
Written to maximize the use of each page
Showing the student’s best effort
Complete

6. Entry: Starter Jan 19
Calculate the Kinetic energy of an object with the Mass of 19.5 kg and the speed of 2400 kph
Kinetic Energy = mv2 2
m = mass
v = speed

7. Entry: Objective Jan 19
Today Cadets will Review how to calculate Gravitational Potential Energy and
Kinetic Energy.

8. Quiet Work Stand & Deliver Open Discussion Team Work
CLASSROOM MODES
Quiet Work
Stand & Deliver
Open Discussion
Team Work

9. DURING OPEN DISCUSSION…
I contribute my ideas to class discussion.
I listen to others when they are speaking.
I wait for the appropriate time to contribute my ideas.
I am polite in my interactions with other students and the teacher.

10. Notebooks Entries Explained:
In pencil ***ALL MATH IS DONE IN
Labeled with the Entry Number
Labeled with the Name of the Entry
Labeled with the Date
Clearly legible
Followed by a horizontal line to separate entries on a single page
Written to maximize the use of each page
Showing the student’s best effort
Complete

11. Entry: 3 8 Jan 19 Gravitational Potential Energy
To Be Continued
To calculate how much Gravitational Potential Energy an object has, we use the following formula:
Gravitational Potential Energy =
Weight x Height

12. Entry: 3 8 Jan 19 Gravitational Potential Energy
To Be Continued
Step one… We need to convert mass in kg to Newtons (N)
Newtons are calculated by multiplying the mass by the specific gravity.
On Earth the specific gravity is 9.81 (We will use 10 to make it easy to start with)
So an object on Earth with a Mass of 9 kg would be 9 x 10 = 90 N

13. Entry: 3 8 Jan 19 Gravitational Potential Energy
To Be Continued
Step two…
Calculate GPE by Multiplying
Weight in Newtons (N) x Height in Meters
90 N x 35 m = 3150 J (Joules)

14. THE CURRENT CLASSROOM “MODE”
Quiet Work
Stand & Deliver
Open Discussion
Team Work

15. DURING TEAM WORK…
I work cooperatively with my team members to accomplish a particular goal by:
Performing assigned tasks/roles
Listening to my team members
Respecting the ideas of others
Being a helpful contributor to the team.

16. Notebooks Entries Explained:
In pencil ***ALL MATH IS DONE IN
Labeled with the Entry Number
Labeled with the Name of the Entry
Labeled with the Date
Clearly legible
Followed by a horizontal line to separate entries on a single page
Written to maximize the use of each page
Showing the student’s best effort
Complete

17. Entry: GPE Jan 19
Calculate the Newtons of the object and the Gravitational Potential Energy of these objects on Earth: (Use 10 for Specific Gravity)
Mass of 0.75kg, __ N, Height of 55 meters, ____ GPE
Mass of 45kg, ___ N, Height of 5 meters, ____ GPE
Mass of 2.35kg,__ N, Height of 72 meters, ____ GPE
Mass of 55kg,___ N, Height of 100 meters, ____ GPE

18. Quiet Work Stand & Deliver Open Discussion Team Work
CLASSROOM MODES
Quiet Work
Stand & Deliver
Open Discussion
Team Work

19. DURING OPEN DISCUSSION…
I contribute my ideas to class discussion.
I listen to others when they are speaking.
I wait for the appropriate time to contribute my ideas.
I am polite in my interactions with other students and the teacher.

20. Notebooks Entries Explained:
In pencil ***ALL MATH IS DONE IN
Labeled with the Entry Number
Labeled with the Name of the Entry
Labeled with the Date
Clearly legible
Followed by a horizontal line to separate entries on a single page
Written to maximize the use of each page
Showing the student’s best effort
Complete

21. Entry: 5 Kinetic Energy 8 Jan 19
To Be Continued
To calculate how much Kinetic Energy an object has we use the following formula:
Kinetic Energy = mv2 2
m = mass
v = speed

22. Entry: 5 Kinetic Energy 8 Jan 19
Mass is how much an object weighs at the Earths surface (a specific gravity of 1), measured in Kilograms:
At the Earths surface, 1 kg = approximately 2.2 pounds.
Speed (v) is measured in kilometers per hour.

23. THE CURRENT CLASSROOM “MODE”
Quiet Work
Stand & Deliver
Open Discussion
Team Work

24. DURING TEAM WORK…
I work cooperatively with my team members to accomplish a particular goal by:
Performing assigned tasks/roles
Listening to my team members
Respecting the ideas of others
Being a helpful contributor to the team.

25. Notebooks Entries Explained:
In pencil ***ALL MATH IS DONE IN
Labeled with the Entry Number
Labeled with the Name of the Entry
Labeled with the Date
Clearly legible
Followed by a horizontal line to separate entries on a single page
Written to maximize the use of each page
Showing the student’s best effort
Complete

26. Entry: 6 Kinetic Energy 8 Jan 19
Calculate the kinetic energy of the following objects:
An object that weighs 20 kg is moving at 35 kph.
An object that weighs 45 kg is moving at 40 kph.
An object that weighs 30 kg is moving at 100 kph.
An object that weighs 400 kg is moving at 100 kph.
An object that weighs .05 kg is moving at 100 kph.
An object that weighs 1500 kg is moving at 10 kph.
An object that weighs .004 kg is moving at 370 kph.
An object that weighs 117 kg is moving at .01 kph.

27. Entry: Homework Jan 19
No Homework for today.