Forces
What is force?
What is speed, direction, size, or shape?
An object that is moving can be defined as having this
What is momentum?
When the effects of an object's forces cancel each other out, the forces are considered to be this
What is balanced?
When the effects of an objects force do not cancel each other out, the force is considered to be this
What is unbalanced?
We measure units of force in these
What is a Newton?
Kicking a soccer ball as it flies toward you causes this change
What is a change in direction?
A person who is standing still and not doing this doesn't have any momentum
What is moving?
These two changes are not happening for an object with a balanced force
What is speed or direction?
The force of an object will be unbalanced if the speed or direction of that force is doing this
What is changing?
The combination of all forces acting on an object is called this
What is net force?
Pushing on a spring exerts a force that causes this kind of change
What is a change in size or shape?
Two cars crashing into each can cause the momentum to do this from one car to the other
What is transfer?
When putting a book down on a table, there is no change in speed or direction for the book or table and the net force is zero
What is balanced?
Pushing a shopping cart in a store makes the cart speed up and the net force is not at zero
What is unbalanced?
When the forces are added together to form the net force, it is in this direction
What is the same direction?
This changes happens when you hit a golf ball with a club
What is a change in speed?
The more an object has of this, the more momentum the object will have
What is weight?
10 N-10 N=0 N
What is a net force that is balanced?
60 N-10 N=50 N
Whats a net force that is unbalanced?
When the net force is the difference between two forces, it is in this direction
What is the opposite direction?
When driving a car around town, these 2 changes in force are happening
What is speed and direction?
What is speed?
100 N-100 N=50 N
Whats another net force that is balanced?
85 N-25 N=60 N
Whats another net force that is unbalanced?