Introducing
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
TEKS 8.6A (Unbalanced Forces)
13
TEK 8.6A
There are ALWAYS forces acting on objects,
whether the objects are in motion or not. We see examples of this every day. For example, if a chair is not moving, one may get the impression that there is no force acting on it. In reality, the force of gravity would be acting on the chair, keeping it on the ground instead of letting it float up in the air.
If the net force of an object is zero, then the
forces are completely balanced and the
object will either stay completely still or
continue moving at a constant pace. If the net
force is not zero, the forces are unbalanced and
the object's motion will change. For example, if
the opposing forces on an object are equal, or
they cancel each other out, the net force is zero,
which means the object will either remain
completely still, or continue moving at a steady
pace. If the opposing forces are unequal, they are
unbalanced, and the net force will not be zero.
Because of this, the object's current motion will
change.
The equation used to find speed is
the distance an object travels, divided
by the amount of time it takes for the
object to travel that distance. In other
words, speed is distance over (divided by)
time (s=d/t). For example, if a car travels
42 miles in two hours, the equation
s=42 miles/ 2 hours tells you that the car
traveled at a speed of 21 miles per hour
(mph).
When two forces act on an object in opposite directions,
the net force is calculated by finding the difference of the
forces. Much like with my description of net forces, the object
will move with the stronger force. In other words, if the stronger
force is pushing right, the object will move right.
End
When two or more forces act upon an object in the
same direction (this causes the object to increase in speed and velocity in the direction of the net force) , the net force is calculated by finding the sum, or total of the forces. For example, if two forces, worth 2 and 5, push an object left, then the net force would be 7,
and the object would move left while increasing in
speed and velocity.
The
The total force being exerted on to an object is called
net force. Net force is calculated by adding the forces
pushing in one direction and subtracting the forces pushing
in the opposite direction. This resulting number is an object's
net force. For example, say that a ball is being pushed to the
right by a force of 5. The opposing force, attempting to push
the ball to the left, is 3. Since the difference between these
two numbers is 2, the net force is 2. Also, since the force pushing
the ball to the right is stronger, the ball will move, or travel, right.