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