TEACHING SCHEDULE
Tue 02-14-2023: Free Body Diagrams
Wed 02-15-2023: Free Body Diagrams
Thu 02-16-2023: Exam Corrections
Friday 02-17-2023: Office Hours
Mon 02-20-2023 to Fri 02-24-2023 February Vacation
Mon 02-27-2023: Gravity & Gravitational Attraction
Tue 02-28-2023: Gravity & Gravitational Attraction
Wed 03-01-2023: Gravity & Gravitational Attraction
Thu 03-02-2023: Vertical Motion & Falling Objects
Friday 03-03-2023: Office Hours
Mon 03-06-2023: Vertical Motion & Falling Objects
Tue 03-08-2023: Projectile Motion
Wed 03-08-2023: Projectile Motion
Thu 03-09-2023: Projectile Motion
Friday 03-10-2023: Office Hours
Mon 03-13-2023: Unit Exam 3
Wed 02-15-2023: Free Body Diagrams
Thu 02-16-2023: Exam Corrections
Friday 02-17-2023: Office Hours
Mon 02-20-2023 to Fri 02-24-2023 February Vacation
Mon 02-27-2023: Gravity & Gravitational Attraction
Tue 02-28-2023: Gravity & Gravitational Attraction
Wed 03-01-2023: Gravity & Gravitational Attraction
Thu 03-02-2023: Vertical Motion & Falling Objects
Friday 03-03-2023: Office Hours
Mon 03-06-2023: Vertical Motion & Falling Objects
Tue 03-08-2023: Projectile Motion
Wed 03-08-2023: Projectile Motion
Thu 03-09-2023: Projectile Motion
Friday 03-10-2023: Office Hours
Mon 03-13-2023: Unit Exam 3
LESSONS
Lesson 09: FREE BODY DIAGRAMS
Tuesday, February 14, 2023 Wednesday, February 15, 2023 |
09 FREE BODY DIAGRAMS Notes
Download and Save Read before class
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Lesson 10: GRAVITATIONAL ATTRACTION
Monday, February 27, 2023 Tuesday, February 28, 2023 Wednesday, March 01, 2023 |
10 GRAVITATIONAL ATTRACTION Notes
Download and Save Read before class
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Lesson 11: VERTICAL MOTION & FALLING OBJECTS
Thursday, March 02, 2023 Monday, March 06, 2023 |
11 VERTICAL MOTION & FALLING OBJECTS Notes
Download and Save Read before class
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Lesson 12: PROJECTILE MOTION
Tuesday, March 07, 2023 Wednesday, March 08, 2023 Thursday, March 09, 2023 |
11 PROJECTILE MOTION Notes
Download and Save Read before class
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CLASSWORK & ASSIGNMENTS
Online Worksheet: Free Body Diagrams
Assigned: Monday, February 27, 2023
Due: Wednesday, February 28, 2023
Assigned: Monday, February 27, 2023
Due: Wednesday, February 28, 2023
Online Worksheet: Free Body Diagrams
Assigned: Wednesday, March 1, 2023
Due: Friday, March 3, 2023
Assigned: Wednesday, March 1, 2023
Due: Friday, March 3, 2023
Online Quiz: Gravity Review
www.quizizz.com
Block 2: 31406887
Block 3: 07650087
Block 4: 57850663
www.quizizz.com
Block 2: 31406887
Block 3: 07650087
Block 4: 57850663
Online Worksheet: Gravitational Attraction Review
Assigned: Monday, March 6, 2023
Due: Wednesday, March 8, 2023
Assigned: Monday, March 6, 2023
Due: Wednesday, March 8, 2023
Online Worksheet: Falling Objects Calculations
Assigned: Thursday, February 9, 2023
Due: Monday, February 13, 2023
Assigned: Thursday, February 9, 2023
Due: Monday, February 13, 2023
Activity: Falling Objects & Air Resistance
Assigned: Tuesday, February 7, 2023
Due: Friday, February 10, 2023
Assigned: Tuesday, February 7, 2023
Due: Friday, February 10, 2023
Unit 3 Exam
Thursday, March 9, 2023
Assigned at 7:30 AM
Due by 5:00 PM
Thursday, March 9, 2023
Assigned at 7:30 AM
Due by 5:00 PM
FORCES AND GRAVITY ANIMATIONS
Gravity is a Force. Gravity causes acceleration.
The balls are moving from higher position to lower position due to the gravitational attraction between the balls and the Earth. The animations are motion dot diagrams. Notice that as the balls move from higher to lower, the spacing between their sequential positions is getting farther and farther apart in equal amounts of time. This indicates moving faster and faster--acceleration. Gravitational attraction in Earth's gravity field causes acceleration in the downward direction. |
Flipping Physics--Dropping Dictionaries
Galileo's experiment, but with books. When objects of similar size and shape, but very different masses are dropped from the same height above the ground, they will accelerate by gravity and impact the ground in equal time. Air resistance acts on them equally. Therefore, mass is independent of gravity. Notice that the books start motionless in the man's hands. After he releases, the books drop and get faster as they fall. The books are accelerating. |
Pure Gravity vs. Air Resistance
Two objects of different masses and surface areas are dropped from the same height above the ground at the same time. On the left, with air in the room--air resistance force acts on both objects, but the paper more. On the right, without air in the room--zero air resistance, so there is only the acceleration by gravity. Compare the rock in the left animation to the rock in the right animation. Air resistance is acting on the rock to the left, making is accelerate downward at a slightly slower rate than in the right, in which there is zero air resistance. |
PHET: Horizontal Projectile Motion
The trajectory is a downward curving path. The projectile falls as it moves away from the cannon. The vector components for horizontal motion and vertical motion (green arrows) are shown. The horizontal velocity remains constant--the horizontal vector arrows remain equal length throughout the trajectory. The downward velocity gets faster with time--the vertical down vector arrows get longer with time. |
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PHET: Vertical Projectile Motion
The trajectory is up-and-down, with no range. The projecile is shot straight up into the air, gets slower and slower as it moves up, reaches the highest point above the surface (instantaneously motionless as it changes direction), falls down and gets faster and faster, impacting the ground at its fastest downward velocity. |
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PHET: Parabolic Projectile Motion
The trajectory is an upside down U-shape. The vector components for horizontal motion and vertical motion (green arrows) are shown. The horizontal velocity remains constant--the horizontal vector arrows remain equal length throughout the trajectory. Upward velocity gets slower with time--the upward vector arrows get shorter and shorter with time. It has only horizontal motion at the highest position above the ground as it changes from up to down. The downward velocity gets faster with time--the vertical down vector arrows get longer with time. |
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HELPFUL VIDEOS
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Mass vs. Weight--Mass never changes!
www.yout-ube.com/watch?v=Y8-T8RouhPA |
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https://www.yout-ube.com/watch?v=kxkFaBG6a-A
Professor Dave Explains Newton's Law of Universal Gravitation |
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https://www.yout-ube.com/watch?v=5VjgMPcmURg
Professor Dave Explains Comparing Gravitational Forces |
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https://www.yout-ube.com/watch?v=1y3ClNyPRlg
Planetary Gravity Gravity on Other Planets |
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https://www.yout-ube.com/watch?v=P1fWe2O2HnE
by AYTAS Gravity Comparison on Different Planets |
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https://www.yout-ube.com/watch?v=MTY1Kje0yLg
Gravity Visualized Space-time 4-dimensions |
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https://www.yout-ube.com/watch?v=kOEDG3j1bjs
What is a Black Hole? Black Holes 101 National Geographic |
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https://www.yout-ube.com/watch?v=lwe5KTdzSHg
What if you Fell into a Black Hole? |
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https://www.yout-ube.com/watch?v=3RdkXs8BibE
Ocean Tides Explained AtomicSchool |
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https://www.yout-ube.com/watch?v=OP0cpXpw8yk
Time Lapse of Bay of Fundy High Tide |
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by NTD Neil Armstrong First Moon Landing 1969 |
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https://www.yout-ube.com/watch?v=XlFhOygrDoM
What is Free fall? by Georgia Public Broadcasting Physics in Motion |
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