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Unbalanced Forces
8.6A
Net Force Key Terms 1. Force
2. Balanced Force
3. Unbalanced Force
4. Net Force
5. At rest
6. Direction
7. Motion
8. Friction
Net Force
Force Force: a push or pull that can change the motion of an object
There are always forces acting on objects, whether the object is moving or not
Net Force Net Force Net force: The total amount
of force on an object
Net forces cause acceleration The direction of the force will
always be the same direction of acceleration
Net Force Balanced
vs. Unbalanced Forces
Balanced forces: If the net force is zero, the forces are balanced and the object stays still (at rest) or a constant speed
Net Force Balanced
vs. Unbalanced Forces
Unbalanced forces: If the net force is not zero, the objects motion will change Motion: change in objects
direction, distance or location
Net Force
What can cause an object to slow down?
Net Force
What can cause an object to slow down?
Net Force Friction A force between two surfaces
rubbing against each other; friction works against motion
Net Force Video During the video, please fill out
the following information at the end Balanced:
Unbalanced: Just so you know…
In the video, we can change the word velocity with acceleration!
Finding Net Force
Finding Net Force Arrows in
the same direction
Add the arrows
Unbalanced force: moving
Finding Net Force Arrows in
opposite directions that are the equal force
Subtract the arrows (it will always be zero)
Balanced Force: Not moving
Finding Net Force Arrows in
different directions with different forces
Subtract the arrows
Unbalanced Force: Moving
What is the net force?
10 N 15 N
Net Force: 5 N
What team is going to fall in the ditch?
10 N 15 N
Net Force: 5 N
Application Activity – Page 12
8 Boxes
•Divide paper up into 8 boxes and include the following:
1.Created definition for each word
2.Pictorial representation of each word
Double Bubble Map
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