A force
an interaction that can be a push or a pull
Net force
the sum of all the forces
weight
the force of earth on an object
Force of earth = ___________ newtons?
10 Newtons
In order to show direction, forces on force diagrams need to have ______________.
Arrows
A system in a force diagram is labeled with a ______________.
dot
The greater the number of newtons, the _________________ the force is.
stronger
The smaller the number of newtons, the _______________________ the force is.
weaker
?F means
net force : the sum of all the forces
If the net force is 0, it means that the object is_______________________.
Not moving.
This picture shows a system that is only affected by force of earth and the ground pushing it up.
If the Christmas Tree falls over with a force of 14 N, what is the net force?
14 N down
What must you include for an answer to a net force problem?
The number of newtons the force is and the direction.
If there are two forces on the same side of the system, you will __________ them.
Add
If there are opposite forces acting upon each other, you will __________________.
Subtract them.
system
...
greater force
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