8 th Grade Science Do Now Monday, February 25, 2013 Make the weekly Do Now on page ___. 1. List 3 examples of an object in motion. Example: A student walking.

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8 th Grade Science Do Now Monday, February 25, 2013 Make the weekly Do Now on page ___. 1. List 3 examples of an object in motion. Example: A student walking down the hallway. 2. Describe what causes the object to move.

8 th Grade Science Today’s Schedule 1. Do Now 2. Blow Dryer Mini-Lab 3. Watch “Boom” video 4. Nature Walk Essential Question How do we calculate and communicate the change in position, direction and speed for moving objects? How do unbalanced forces affect the motion of an object? How de we transform energy to make it useful? Vocabulary Unbalanced Force Balanced Force Motion Pre-APGrade-Level Homework Homework due Fri. Monday, February 25, 2013

8 th Grade Science Today we will… 8.6(A) demonstrate and calculate how unbalanced forces change the speed or direction of an object’s motion Objective: Students will be able to identify the effects of motion caused by unbalanced forces. Monday, February 25, 2013

8 th Grade Science Blow Dryer Mini-Lab On page __, draw the table below. Monday, February 25, 2013 Blow Dryer PositionPing Pong Ball Observations Direction of Motion (arrows) No Blow Dryer Air flowing straight up Air flowing at a 45 degree angle Air flowing at a 90 degree angle

8 th Grade Science Blow Dryer Mini-Lab Answer the following questions on page __. 1.Describe the differences you saw between each trial. 2.List one balanced and one unbalanced force you saw. 3.What would happen if there were no balanced forces? Why? Monday, February 25, 2013

8 th Grade Science Video “Here Comes the Boom” Monday, February 25, 2013

8 th Grade Science Do Now Tuesday, February 26, 2013 Is gravity a balanced or unbalanced force? Why or why not?

8 th Grade Science Today’s Schedule 1. Do Now 2. Practice Problems 3. Review “Boom” Video 4. Exit Ticket Essential Question How do we calculate and communicate the change in position, direction and speed for moving objects? How do unbalanced forces affect the motion of an object? How de we transform energy to make it useful? Vocabulary Unbalanced Force Balanced Force Motion Pre-APGrade-Level Homework Homework due Fri. Tuesday, February 26, 2013

8 th Grade Science Today we will… 8.6(A) demonstrate and calculate how unbalanced forces change the speed or direction of an object’s motion Objective: Identify balanced and unbalanced forces and variables that can change them. Tuesday, February 26, 2013

8 th Grade Science Practice Problems Tuesday, February 26, N What is the net force? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right)

8 th Grade Science Practice Problems Tuesday, February 26, N What is the net force? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) 30 N

8 th Grade Science Practice Problems Tuesday, February 26, N What is the net force? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) 10 N

8 th Grade Science Practice Problems Tuesday, February 26, N What is the net force? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) 30 N

What is the net force? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) 8 th Grade Science Practice Problems Tuesday, February 26, N

8 th Grade Science Jump Rope Demo When is the rope balanced? When is the rope not balanced? Tuesday, February 26, 2013

8 th Grade Science Review Video “Here Comes the Boom” Tuesday, February 26, 2013

8 th Grade Science Exit Ticket List a similarity and difference between an unbalanced and balanced force. Tuesday, February 26, 2013

8 th Grade Science Do Now Draw a picture of you walking to class. Then draw 3 arrows showing balanced and unbalanced forces. Wednesday/Thursday, February 27/28, 2013

8 th Grade Science Today’s Schedule 1. Do Now 2. Build Rockets Essential Question How do we calculate and communicate the change in position, direction and speed for moving objects? How do unbalanced forces affect the motion of an object? How de we transform energy to make it useful? Vocabulary Unbalanced Force Balanced Force Motion Pre-APGrade-Level Homework Homework due Fri. Wednesday/Thursday, February 27/28, 2013

8 th Grade Science Today we will… 8.6(A) demonstrate and calculate how unbalanced forces change the speed or direction of an object’s motion Objective: Build rockets Wednesday/Thursday, February 27/28, 2013

8 th Grade Science Build Rockets Wednesday/Thursday, February 27/28, 2013

On page __, answer the following. What is the net force? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) 8 th Grade Science Do Now Friday, March 1, N 10 N

8 th Grade Science Today’s Schedule 1. Do Now 2. Tug-of-War 3. Questions Essential Question How do we calculate and communicate the change in position, direction and speed for moving objects? How do unbalanced forces affect the motion of an object? How de we transform energy to make it useful? Vocabulary Unbalanced Force Balanced Force Motion Pre-APGrade-Level Homework Homework due Fri. Friday, March 1, 2013

8 th Grade Science Today we will… 8.6(A) demonstrate and calculate how unbalanced forces change the speed or direction of an object’s motion Objective: Students will demonstrate balanced and unbalanced forces. Friday, March 1, 2013

8 th Grade Science Tug-of-War Friday, March 1, 2013

8 th Grade Science Questions Answer the following questions on page __. 1.Describe the tug-of-war trials using the words: balanced force, unbalanced force, and motion. 2.Describe an example where there was an unbalanced force. How did you know it was unbalanced? 3.Draw a picture of a trial where the forces were unbalanced with arrows showing the direction of the forces. 4.Draw a picture of a trial where the forces were balanced with arrows showing the direction of the forces. Friday, March 1, 2013