Net Force
Vocabulary
Forces
Forces continued
Pictures
100
What is net force?
The overall forces acting on an object.
100
Two forces equal in size and acting in opposite directions on an object.
Balanced Forces
100
What is an unbalanced force?
Occurs when there are two forces that are not equal in size and act in opposite directions.
100
What is one example of a balanced force?
1. A trophy sitting on a shelf
2. A rocket taking off
A trophy sitting on a shelf.
100
3 N to the right
200
If the net force adds up to 0, are the forces balanced or unbalanced?
Balanced
200
The straight path an object can move along.
Direction
200
Can forces cause objects to move?
Yes, they can cause objects to move.
200
True or False: A balanced force only occurs when an object is not moving.
False
200
Who wins the tug of war with what net force?
The person on the left with 20 N.
300
What is the net force between a 12N force and a 10N force going in opposite directions?
2N
300
A "downward" force exerted on everything that has mass by the earth
Gravity
300
What three things can unbalanced forces change?
Speed, direction or position.
300
Which could be an example of an unbalanced force?
1. A ball at the top of a hill
2. A skier going downhill.
A skier going downhill.
300
60 N to the right
400
If the net force does not add up to 0, are the forces balanced or unbalanced?
Unbalanced
400
The rate of change of position, or the distance traveled, in a period of time.
Speed
400
What units are forces measured in?
Newtons
400
An object that is accelerating can be described as a(n) _____ force.
Unbalanced
400
40 N to the right
500
What is the net force between 400N and 552N going in opposite directions?
152N
500
Push or a pull that causes an object to stop, move or change direction.
Force
500
Are all forces balanced or unbalanced?
Forces can be either balanced or unbalanced.
500
What is applied force?
When a person or object directly pushes or pulls another object.
500
Which blocks WILL move?
Blocks B and C