The final law of motion (the third one) will
help us really understand how
Motion in our universe works!
Summarize Mr. Miller’s example:
________________________________________________________________________________________
________________________________________________________________________________________
Newton’s third law says that every action________________
has an equal and opposite reaction___________________.
|
·
When you push down on the table, it pushes
back up___________-
·
When you throw____________ a ball
forward, you also get pushed backwards-______________!
·
When a bird pushes against
the air, the air pushes back__________--!
|
Today we will diagram these “force pairs__________________.”
1)
Visualize the force_______________
as a push or a pull. Visualize only ONE force!
2)
Using the same force_______________-,
decide what else is also pushing or pulling back - always in the opposite____________ direction.
***Don’t let yourself bring in forces that aren’t part of the
pair!
3)
Draw a diagram with arrows__________
moving in the opposite_____________ to show these forces.
Let’s Try as a Class
1) A
falling acorn.
Action Force: Gravity pulls the acorn down.
Reaction Force:
2) Rowing
a boat.
Action Force:
Reaction Force:
Try It With Your Shoulder Buddy
Forces Diagram
1) Ja’Liyah
jumps up into the air.
Action Force: Ja’Liyah pushes against the ground.
Reaction Force:
2) Tennis
ball hits the wall.
Action Force:
Reaction Force:
3) Video:
Action Force:
Reaction Force:
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